f(x) + g(x) = x³ - 2x + 3
Explanation:
x² - 2x + 3 + (x³ - x² + 4x)
x² - 2x + 3 + x³ - x² + 4x
x³ + x² - x² - 2x + 4x + 3
x³ + 0 - 2x + 3
x³ - 2x + 3
6.5m questions
8.5m answers