SOLUTION: Given f(x)=3x^2+x-1 and g(x)=4x+5, find (gf)(x).
A. 3x^2+5x+4
B. 12x^3+4x^2-4x
C. 12x^3+19x^2+x-5
D. 12x^3+19x^2+9x-5
Thank you
Algebra.Com
Question 996210: Given f(x)=3x^2+x-1 and g(x)=4x+5, find (gf)(x).
A. 3x^2+5x+4
B. 12x^3+4x^2-4x
C. 12x^3+19x^2+x-5
D. 12x^3+19x^2+9x-5
Thank you
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!
if and ,then
so your answer is: C.
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