Question

f(x) = 3x² + 5x – 2-g(x) = 5x³ - 4x² + 4Find (f + g)(x)O A. (f+g)(x) = -5x³ + 7x² + 5x - 6OB. (f+g)(x) = 8x³ + x + 2O C. (f+g)(x) = 5x³+3x²+x+2D. (f+g)(x) = 5x³ - x² + 5x+2

Answer 1

f(x) = 3x² + 5x – 2

g(x) = 5x³ - 4x² + 4

We want to find

(f+g)(x)

We need to add the two functions, making sure to line up the powers of x

f (x) = 3x² + 5x – 2

+g(x) = 5x³ - 4x² + 4

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(f+g)(x) = 5x³ - x²+ 5x+2

The answer choice is choice D

D. (f+g)(x) = 5x³ - x² + 5x+2