f(x)=5x-3, g(x)=x^2 find fg(-2) and find gf(x) in terms of x
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Step-by-step explanation:
g(x)=x2
g(-2)=(-2)2
g(-2)=4
put g(-2) in f(x)
fg(-2)=5(g(-2))-3
fg(-2)=5(4)-3
fg(-2)=20-3
fg(-2)=17
now
gf(x)=?
g(x)=x2
gf(x)=(5x-3)2
gf(x)=25X2+9-30X
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