Deirdre is factoring the polynomial x2 + 2x – 24. which combination can she use to replace the middle term, 2x?

6x - 4x

Step-by-step explanation:

x^2 + 2x – 24

We need to find out the factors that replace the middle term +2x

Constant term is -24

coefficient of middle term is +2

We need to find out two factors whose product is -24  and sum is +2

6  times (-4) = -24

6  + ( -4) = 2

So 6  and -4 gives us product -24  and sum +2

the middle term +2x can be written as 6x - 4x

f(2x−x2)=−3x2+6x−1

step-by-step explanation:

set up the composite function and evaluate.

f(2x−x2)=−3x2+6x−1