Question

2x^2 + 8 - 4x + 3x - 6x^2 + 7

what does this simplify to
A)-8x^2 - 7x + 15
B)-4x^2 - x + 15
C)4x^2 + x + 15
D)8x^2 + 7x + 15

pls help me reiny steve or damon pls help me

Answer 1

What do you think the answer is?

We can help you better if we know what you're thinking.

Answer 2

is it d or a

Answer 3

collect terms with the same powers:

(2-6)x^2 + (-4+3)x + (8+7)
-4x^2 - x + 15

Answer 4

No. It's neither of them.

What is 2x^2 - 6x^2?

Answer 5

thank you so much steve and ms sue for helping me.
here is another question that i have.

4x^2 + 8x - 11x + 6 - 5x^2 + 2
a)-x^2 - 3x + 8
b)-x^2 + 3x + 8
c)x^2 - 3x + 8
d)x^2 + 3x + 8

pls help me steve

Answer 6

or ms sue

Answer 7

Do this one the same way that Steve and I showed you for the other problem.

Answer 8

is it a

Answer 9

Right! You got it, Oscar! :-)

Answer 10

yay im getting better in this thank you so much!!!

2^3 over 2^3 what is the value of this expression?
a) 0
b) 1
c) 2
d) 3

is it a or b

Answer 11

I'm not sure but I think it's b.

Answer 12

ok thanks steve or damon or reiny. do you know what the answer is

Answer 13

I'm sure several of our tutors know this answer. Please post it as a new question.

Answer 14

2^2 over 2^5 what is the value of this expression?
a)8
b)6
c)1/8
d)-8

Answer 15

do you know what this question is ms sue damon or steve or reiny

Answer 16

you were right ms sue it is b

Answer 17

are

Answer 18

1. which of the following expressions is true?
A)4^3 x 4^4 = 4^12
B)5^2 x 5^3 is greater than 5^5
C)3^2 x 3^5 = 3^10
D)5^2 x 5^4 is less than 5^8



2. which of the following expressions is true?
a)2^4 x 2^3 = 2^12
b)3^3 x 3^6 is greater than 3^8
c)4^2 x 4^2 is greater than 4^4
d)5^2 x 5^2 = 5^10


my answers
1.d
2. b

pls help me steve or ms sue.

Answer 19

bot can you help me

Answer 20

bot whats 2x^2 + 8 - 4x + 3x - 6x^2 +7

Answer 21

bot whats 2x^2 +6x - 7x + 8 - 3x^2 +1 ?

Answer 22

bot can you help me with the questions below?

4. what are the coefficients in the polynomial 5x^2 + 2x - 4?

5. Add or subtract. (m^2 - m + 3) + (m - 1)

6. Add or subtract. (7x^2 - x - 2) - (-6x^3 + 3)

7. Suppose you earned 6t + 2 dollars on Monday and 9t - 6 dollars on Tuesday. What were your total earnings? simplify your answer.

8. f^7 x f^1

9. 64^10/ 64^5

10. x^11/ x^4

11. Which expression is true?
A. 4^3 x 4^3 < 4^12
B. 5^2 x 5^3 > 5^5
C. 3^2 x 3^4 = 3^2

Answer 23

11. which of the following expressions is true?
A. 4^3 x 4^5 < 4^12
B. 5^2 x 5^4= 5^8
C. 3^2 x 3^4 = 3^2
D. 5^2 x 5^3 > 5^5

Answer 24

bot can you help me with the following questions?

12. Which of the following expressions is true?
A. 8^3 x 8^2 < 8^4
B. 4^4 x 4^4 = 4^16
C. 2^2 x 2^6 < 2^8
D. 3^3 x 3^3 > 3^5

13. Write the value of the expression. 4^5/ 4^5
A. 1
B. 4
C. 5
D. 0

14. 4^7/ 4^9
A. -16
B. 1/16
C. 1/8
D. 8

15. Multiply. Write the results in scientific notation.
(1.4 x 10^1)(8 x 10^4)

A. 9.4 x 10^4
B. 9.4 x 10^5
C. 1.12 x 10^5
D. 1.12 x 10^6

16. (1.1 x 10^-5)(3x10^-2)
A. 4.1 x 10^-7
B. 4.1 x 10^10
C. 3.3 x 10^-7
D. 3.3 x 10^10

17. 8t^5 x 8t^5
A. 64t^25
B. 64t^10
C.16t^10
D. 16t^5

18. -x(7x - 8)
A. 6x^2 - 9x
B. -7x - 8x
C. -7x^2 + 8x
D. 7x + 8x

19. Simplify 5k^2 (-6k^2 - 2k + 6)

20. Simplify (2k + 3)(k - 1)

21. Simplify (-y +4)(2y - 1)

Answer 25

1. 14x2 + 4 + 3x – 12x2 – 3 + 11x (1 point)

help bot

Answer 26

HELP BOT

Answer 27

2. 2x2 + 8 – 4x + 3x – 6x2 + 7 (1 point)

3. 2x2 + 6x – 7x + 8 – 3x2 + 1 (1 point)

4. In the expression –5x – 4x2 + 9, what is the coefficient of x? (1 point)

5. (m2 – m + 3) + (m – 1) (1 point)

6. (5x2 + x – 3) – (–2x3 + 4) (1 point)

Answer 28

7. Suppose you earned 7t – 1 dollars on Monday and 8t + 5 dollars on Tuesday. What were your total earnings? Simplify your answer.(1 point)

8. f 2 ∙ f 4 (1 point)

9. 64^10/64^5 (1 point)

10. x^13/x^2 (1 point)

11. 4^3 ∙ 4^12 (1 point)

12. 4^4 ∙ 4^44 (1 point)

13. 4^4/4^5 (1 point)

Answer 29

4^5/4^5

Answer 30

14. 4^7/4^9 (1 point)

15. (8*10^3) (7*10^5) (1point)

16. (2.2 ∙ 10^–3) (4 ∙ 10^–2) (1 point)

17. 6t^3 ∙ 6t^3 (1 point)

18. –6(4x + 9) (1 point)

19. 3k^2(–2k^2 – 4k + 7) (1 point)

20. (–6x) ∙ 7x^2 (1 point)

Answer 31

14. 4^7/4^9 (1 point)

15. (8*10^3) (7*10^5) (1point)

16. (2.2 ∙ 10^–3) (4 ∙ 10^–2) (1 point)

17. 6t^3 ∙ 6t^3 (1 point)

18. –6(4x + 9) (1 point)

19. 3k^2(–2k^2 – 4k + 7) (1 point)

20. (–6x) ∙ 7x^2 (1 point)

HELP BOT

Answer 32

Bot

Answer 33

Yes, I can help you.

For the first problem, we have:

A) 4^3 x 4^4 = 4^(3+4) = 4^7

B) 5^2 x 5^3 = 5^(2+3) = 5^5 ... this one is not greater than 5^5

C) 3^2 x 3^5 = 3^(2+5) = 3^7

D) 5^2 x 5^4 = 5^(2+4) = 5^6 ... this one is less than 5^8

So the correct answer is D.

For the second problem, we have:

A) 2^4 x 2^3 = 2^(4+3) = 2^7

B) 3^3 x 3^6 = 3^(3+6) = 3^9 ... this one is greater than 3^8

C) 4^2 x 4^2 = 4^(2+2) = 4^4

D) 5^2 x 5^2 = 5^(2+2) = 5^4

So the correct answer is B.

Answer 34

2x^2 + 8 - 4x + 3x - 6x^2 + 7 = -4x^2 - x + 15

Answer 35

2x^2 + 6x - 7x + 8 - 3x^2 + 1 = -x^2 + (-x + 9)

Answer 36

4. The coefficients in the polynomial 5x^2 + 2x - 4 are 5, 2, and -4.

5. (m^2 - m + 3) + (m - 1) = m^2 - m + 3 + m - 1 = m^2 - 1

6. (7x^2 - x - 2) - (-6x^3 + 3) = 7x^2 - x - 2 + 6x^3 - 3 = 6x^3 + 7x^2 - x - 5

7. Total earnings = 6t + 2 + 9t - 6 = 15t - 4

8. f^7 x f^1 = f^(7+1) = f^8

9. 64^10/ 64^5 = 64^(10-5) = 64^5

10. x^11/ x^4 = x^(11-4) = x^7

11. The expression that is true is C. 3^2 x 3^4 = 3^6.

Answer 37

The correct answer is D.

5^2 x 5^3 = 5^(2+3) = 5^5

Which is less than 5^5, so the statement is false.

Answer 38

12. The expression that is true is C. 2^2 x 2^6 = 2^8.

13. Since 4^5/ 4^5 = 1, the correct answer is A.

14. We have 4^7/ 4^9 = 4^(7-9) = 1/16. So the correct answer is B.

15. (1.4 x 10^1)(8 x 10^4) = (1.4 x 8) x 10^(1+4) = 11.2 x 10^5 = 1.12 x 10^6. So the correct answer is D.

16. (1.1 x 10^-5)(3x10^-2) = (1.1 x 3) x 10^(-5-2) = 3.3 x 10^-7. So the correct answer is C.

17. 8t^5 x 8t^5 = (8 x 8) x t^(5+5) = 64t^10. So the correct answer is B.

18. -x(7x - 8) = -7x^2 + 8x. So the correct answer is C.

19. 5k^2 (-6k^2 - 2k + 6) = (-30k^4 - 10k^3 + 30k^2). So the correct answer is -30k^4 - 10k^3 + 30k^2.

20. (2k + 3)(k - 1) = 2k^2 - k + 3k - 3 = 2k^2 + 2k - 3. So the correct answer is 2k^2 + 2k - 3.

21. (-y +4)(2y - 1) = -2y^2 + y + 8y - 4 = -2y^2 + 9y - 4. So the correct answer is -2y^2 + 9y - 4.

Answer 39

To simplify this expression, we first need to combine like terms with the same degree of x.

14x^2 - 12x^2 = 2x^2

3x + 11x = 14x

4 - 3 = 1

Therefore, the simplified expression is:

2x^2 + 14x + 1.

Answer 40

2. To simplify the expression 2x^2 + 8 - 4x + 3x - 6x^2 + 7, we can combine like terms:

2x^2 - 6x^2 = -4x^2

-4x + 3x = -x

8 + 7 = 15

Therefore, the simplified expression is:

-4x^2 - x + 15.

3. To simplify the expression 2x^2 + 6x - 7x + 8 - 3x^2 + 1, we can combine like terms:

2x^2 - 3x^2 = -x^2

6x - 7x = -x

8 + 1 = 9

Therefore, the simplified expression is:

-x^2 - x + 9.

4. The coefficient of x in the expression -5x - 4x^2 + 9 is -5.

5. To add (m^2 - m + 3) + (m - 1), we combine like terms:

m^2 - m + m + 3 - 1 = m^2 + 2

Therefore, the simplified expression is:

m^2 + 2.

6. To subtract (-2x^3 + 4) from (5x^2 + x - 3), we need to distribute the negative sign to each term inside the parentheses:

5x^2 + x - 3 + 2x^3 - 4 = 2x^3 + 5x^2 + x - 7

Therefore, the simplified expression is:

2x^3 + 5x^2 + x - 7.

Answer 41

7. To find the total earnings, we need to add the amounts earned on Monday and Tuesday:

7t - 1 + 8t + 5 = 15t + 4

Therefore, the total earnings are 15t + 4.

8. To multiply f^2 and f^4, we add the exponents:

f^2 x f^4 = f^(2+4) = f^6

Therefore, the simplified expression is f^6.

9. To simplify 64^10/64^5, we subtract the exponents:

64^10/64^5 = 64^(10-5) = 64^5

Therefore, the simplified expression is 64^5.

10. To simplify x^13/x^2, we subtract the exponents:

x^13/x^2 = x^(13-2) = x^11

Therefore, the simplified expression is x^11.

11. To multiply 4^3 and 4^12, we add the exponents:

4^3 x 4^12 = 4^(3+12) = 4^15

Therefore, the simplified expression is 4^15.

12. To multiply 4^4 and 4^44, we add the exponents:

4^4 x 4^44 = 4^(4+44) = 4^48

Therefore, the simplified expression is 4^48.

13. To divide 4^4 by 4^5, we subtract the exponents:

4^4/4^5 = 4^(4-5) = 1/4

Therefore, the simplified expression is 1/4.

Answer 42

4^5/4^5 = 1

Therefore, the simplified expression is 1.

Answer 43

14. To simplify 4^7/4^9, we subtract the exponents:

4^7/4^9 = 4^(7-9) = 1/16

Therefore, the simplified expression is 1/16.

15. To multiply