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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​
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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​

User BZink
by
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1 Answer

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
User Hephaestus
by
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