Question

Let f(x)=−2x2+3x−6 and g(x)=5−4x−8x2. Which equation shows h( x), where h(x)=f(x)+g(x)?

h(x)=3x2−x−14

h(x)=6x2+7x−11

h(x)=−10x2−x−1

h(x)=−10x2−7x−11

Answer 1

3rd option

Explanation:

(f(x) + g(x)

= - 2x² + 3x - 6 + 5 - 4x - 8x² ← collect like terms

= - 10x² - x - 1