f(x) = 2x² + 6x - 4
g(x) = 5x³ - 6x² -3
Find (f + g)(x).
O A. (f+g)(x) = −5x³ + 8x² + 6x − 1
O B. (f+g)(x) = 5x³ + 2x² - 7
O c. (f+g)(x) = 7x³ - 7
D. (f+g)(x) = 5x³ - 4x² + 6x - 7