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Question 934586: For the given functions f and g, find (f times g)(x)
f(x)=7x+5, g(x)=3x-4
Can you please show me the steps to how to find the answer? I don't understand this problem at all
Answer by jim_thompson5910(35256)   (Show Source):
You can put this solution on YOUR website! (f * g)(x) = f(x) * g(x)
(f * g)(x) = (f(x)) * (g(x))
(f * g)(x) = (7x+5) * (3x-4)
(f * g)(x) = 7x * (3x-4) + 5 * (3x-4)
(f * g)(x) = 7x*3x + 7x*(-4) + 5*(3x) + 5*(-4)
(f * g)(x) = 21x^2 - 28x + 15x - 20
(f * g)(x) = 21x^2 - 13x - 20
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