Asked by Lisa
ARE THESE ANSWERS RIGHT ?
Express as a trinomial:
(2x-3)(x+7)
IS THE ASNWER 2x^2 + 11x - 21
WHAT IS THE VALUE OF 2 times 5^-2
IS THE ANSWER 2/25
DIVIDE:
x/x^2-49 divide by 5x^3/x^2 + 9x + 14
IS THE ANSWER x+2/5x^2(x-7)
Express as a trinomial:
(2x-3)(x+7)
IS THE ASNWER 2x^2 + 11x - 21
WHAT IS THE VALUE OF 2 times 5^-2
IS THE ANSWER 2/25
DIVIDE:
x/x^2-49 divide by 5x^3/x^2 + 9x + 14
IS THE ANSWER x+2/5x^2(x-7)
Answers
Answered by
Lisa
PLEASE CHECK THESE ANSWERS
Answered by
Henry
1. Correct.
2. Correct.
3. Correct! Good job!!
2. Correct.
3. Correct! Good job!!
Answered by
TRACY
thanks
Answered by
drwls
x/(x^2-49) divided by 5x^3/(x^2 + 9x + 14)
= [x/(x^2-49])*[(x^2 + 9x + 14)/5x^3]
= x/[(x+7)(x-7)]*[(x+7)(x+2)/5x^2]
= (x+2)/[5x^2*(x-7)]
Yes, #3 is correct. Your #2 requires parentheses. One of the ambiguous versions is correct.
= [x/(x^2-49])*[(x^2 + 9x + 14)/5x^3]
= x/[(x+7)(x-7)]*[(x+7)(x+2)/5x^2]
= (x+2)/[5x^2*(x-7)]
Yes, #3 is correct. Your #2 requires parentheses. One of the ambiguous versions is correct.
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