Saturday, November 9, 2013

Given f (x)=-2x^2+x-5 , Find f(x+3)

f(x+3)=
2(x+3)^2+(x+3)-5=
2(x^2+6x+9)+x-2=
2x^2+12x+18+x-2=
2x^2+13x+16
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