SOLUTION: f(x)=4x^2-2x and g(x)=3x+9 FIND (gof)(-2)?

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Question 702741: f(x)=4x^2-2x and g(x)=3x+9
FIND (gof)(-2)?
Answer by mathbird(71) About Me  (Show Source):
You can put this solution on YOUR website!
f(x)=4x^2-2x and g(x)=3x+9
g{f(-2)}=g{4(-2)^2-2(-2)}
g{f(-2)}=g{4*4+4}
g{f(-2)}=g(20)
g(f(-2))=3(20)+9
=60+9
=69