Question

If f (2) = 2x2 + 3x – 9 and g(x) = 3x2 + 8 find (f + g)(x)

Answer 1

3x² + 13

Explanation:

f(2) = 2(2)² + 3(2) - 9 = 8+6-9 = 5

g(x) = 3x² + 8

added together: 3x² + 8 + 5 = 3x² + 13