Question

Suppose f (x) = 2x - 5, g(x) = -3x - 1, and h(x) = 2x^2 + x - 7 Solve: h (x) = 8

Answer 1

According to the given data we have the following equation:

h(x) = 2x^2 + x - 7

In order to solve h(x) = 8​ we would plug the value of 8 into the equation.

So:

h(8)=2(8)^2 + 8-7

h(8)=2*64 +1

h(8)=128+1

h(8)=129

Therefore, h(x) = 8 would be 129.