Question 1015896

f(x)=5x+3;g(x)=x² and solve for (f o f)(x)
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g(x) is not involved.
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1st, find f(x).  It's given.
Then sub f(x) ** 5x+3 ** for x.
f(5x+3) = 5*(5x+3) + 3
= 25x + 18