Question

The expression x-2 has a value of -5 for some value of x. For the same value of x, what is the value of the expression (x-2)²+5x-10? Show your reasoning for this problem in the space provided.
(1) 0 (2) 15 (3) 14 (4) -10

Answer 1

Answer:

-10

Step-by-step explanation:

Assuming that x-2=-5, we can subtitute it into the equation as follows:

(-5)^2 + 5(-5) - 10, we start off with the exponent according to the order of operations resulting in:

25 + 5(-5) -15, then we do the multiplication next:

25 + (5 * -5 = -25) so:

25 + -25 - 10, the 25s cancel each other out and your left with:

0 - 10 which equals -10