f(x) = 3x2 - 2x - 8 express f(x + 2) in the form ax2 + bx

i dont know how to do this
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1 Answer

Replace x by x+2:

f(x+2)=3(x+2)^2-2(x+2)-8=

3(x^2+4x+4)-2x-4-8=

3x^2+12x+12-2x-12=3x^2+10x, which is in the form ax^2+bx where a=3 and b=10.

by Top Rated User (1.1m points)

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