SOLUTION: Which polynomial expression would have a value of -2 when x=-2? A. 2xsquare + 2x -2 B. 3xsquare -4x+1 C. Xsquare + 3x +2 D. -x square -4x -6 What is the formula for this?

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Which polynomial expression would have a value of -2 when x=-2? A. 2xsquare + 2x -2 B. 3xsquare -4x+1 C. Xsquare + 3x +2 D. -x square -4x -6 What is the formula for this?      Log On


   

Question 848228: Which polynomial expression would have a value of -2 when x=-2?
A. 2xsquare + 2x -2
B. 3xsquare -4x+1
C. Xsquare + 3x +2
D. -x square -4x -6
What is the formula for this?
Answer by swincher4391(1107) About Me  (Show Source):
You can put this solution on YOUR website!
f(x) = 2x%5E2+%2B+2x+-2
g(x) = 3x%5E2-4x%2B1
h(x) = x%5E2%2B3x%2B2
j(x) = -x%5E2+-+4x+-6

f(-2) = 2%2A%28-2%29%5E2+%2B+2%2A%28-2%29+-+2+=+2
g(-2) = 3%2A%28-2%29%5E2+-4%28-2%29+%2B1+=+21
h(-2) = %28-2%29%5E2+%2B+3%28-2%29+%2B+2+=+0
j(-2) = -%28-2%29%5E2+-+4%28-2%29+-6+=+highlight%28-2%29
The answer is D.