HEP PLSSS Given f(x)=3x2+4x and g(x)=2x2−x+1. What is (f+g)(x)? 5x2+3x+1 −x2−5x−1 6x2−4x+1 x2+5x−1

asked Apr 18, 2022 36.5k views

4 votes

HEP PLSSS

Given f(x)=3x2+4x and g(x)=2x2−x+1.

What is (f+g)(x)?

5x2+3x+1

−x2−5x−1

6x2−4x+1

x2+5x−1

by BZink

5.0k points

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4 votes

(fg)(x) means multiply f(x) by g(x). Use the distributive law:

(fg)(x) = (x2+3x+2)(x+1) = x3 + 3x2 + 2x + x2 + 3x + 2 = x3 + 4x2 + 5x + 2

Hephaestus answered Apr 24, 2022

4.8k points

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