Question

1. Which of the following is one of the factors of 2x2 + 2x – 144?

a. 2
b. x – 8
c. x + 9
d. All of the above



2. Which of the following is one of the factors of x2 – 13x + 12?

a. x + 12
b. x – 3
c. x – 1
d. x + 1

Answer 1

for the first one i stopped at 2(x2 + x - 72)

Answer 2

factoring (x^2 + x - 72) will give u (x-8)(x+9)
so now can u tell whats the answer for 1st ?

Answer 3

Hello - the factors are FOUND by FINDING THE ROOTS of the quadratic expression inside the brackets

Answer 4

As the prev. person said the Roots are \[r_{1} =\]+8 and \[r_{2} =\]-9.

Answer 5

So the factoized form is (x - \[r_{1} \])(x - \[r_{2} \]

Answer 6

(x - r1)(x-r2) is (x-8)(x+9)