Question

PLS HELP ME!!
I really need the answers to these few questions I need toturn them in ASAP.

Simplify each polynomial. Write each in standard form.
HINT: Watch for the operation! Add? Subtract? Or Multiply?
8. 4m(2m+9m^2-6)

12. (x-1)^2

13. (4y+2)^2

Factor each polynomial.
HINT: Change from x^2+bx+c to (x+p)(x+q) where p and q are the factors of c that add to b.

19. p^2-20p+100

20. r^2+6r-40

21. x^2-13x-30

22. d^2-18d+45

Answer 1

We do not do your homework for you. Although it might take more effort to do the work on your own, you will profit more from your effort. We will be happy to evaluate your work though.

However, I will start you out with one problem.

20. -4, 10

Answer 2

8 , 12 and 13

Multiply members one by one and edit expression.

20.

r² + 6 r - 40 =

( r² - 4 r ) + 10 r - 40 =

( r² - 4 r ) + ( 10 r - 40 ) =

r ( r - 4 ) + 10 ( r - 4 ) =

( r - 4 ) ( r + 10 )

21.

x² - 13 x - 30 =

( x² + 2 x ) - 15 x - 30 =

( x² + 2 x ) - ( 15 x + 30 ) =

22.

d² - 18 d + 45 =

( d² - 3 d ) - 15 d + 45 =

( d² - 3 d ) - ( 15 d - 45 ) =

Do the following steps.

19.

p² - 20 p + 100 =

p² - 2 ∙ p ∙ 10 +10² =

( p - 10 )²