brianluong00 brianluong00

04-10-2017
Mathematics

contestada

Let f(x) = 4 – x^2-, g(x) = 2 – x. Find (f + g)(x) and its domain.

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wooerfara3661 wooerfara3661

04-10-2017

(f+g)(x)=(2-x)(2+x)+(2-x)=(2-x)(2+x+1)=(x+2)×(x+3)=x^2+5x+6 & Domain=R

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