Question 1208241: f(x)=10x^(2)+13x-3, g(x)=5x+1. find (f o g)(x)
Answer by ikleyn(52780)   (Show Source):
You can put this solution on YOUR website! .
f(x)=10x^(2)+13x-3, g(x)=5x+1. find (f o g)(x)
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To get (f o g)(x), we should replace x in the formula
f(x) = 10x^(2)+13x-3
by 5x+1. Doing it mechanically, we get
(f o g)(x) = 10*(5x+1)^2 + 13*(5x+1) - 3 = 10*(25x^2 + 10x + 1) + 65x + 13 - 3 =
= 250x^2 + 100x + 10 + 65x + 10 = 250x^2 + 165x + 20. ANSWER
Solved, answered and explained.
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