Question

Given f(x) = 5x - 6 and g(x) = x2 - 5x + 6, find the function (f + g)(x). Use the ^ key for the exponent. Enter your answer as the example: 4x^3.

Answer 1

The answer is x².

f(x) = 5x - 6
g(x) = x² - 5x + 6

(f + g)(x) = f(x) + g(x)
              = 5x - 6 + x² - 5x + 6
              = x² + 5x - 5x + 6 - 6
              = x² + 0 + 0
              = x²