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Find (f⋅g)(x)

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Find (f⋅g)(x) if

f(x)=4x−5 and g(x)=5x+2

functions
composite-functions
functions-multiplication

asked Sep 20, 2018 in PRECALCULUS by anonymous

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1 Answer

0 votes

f(x)=4x−5 and g(x)=5x+2

Calculate the (f⋅g)(x).

(f⋅g)(x)=f(x)⋅g(x)

=(4x−5)⋅(5x+2)

=(4x)(5x)+(4x)(2)-(5)(5x)-(5)(2)

=20x^2+8x-25x-10

=20x^2-17x-10

answered Sep 21, 2018 by lilly Expert

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