SOLUTION: f(x) = 2x^2 - 1 and g(x) = 3x + 2 Find each value. f(g(-2)) g(f(sqrt2))

Algebra ->  Rational-functions -> SOLUTION: f(x) = 2x^2 - 1 and g(x) = 3x + 2 Find each value. f(g(-2)) g(f(sqrt2))      Log On


   

Question 77635: f(x) = 2x^2 - 1 and g(x) = 3x + 2
Find each value.
f(g(-2))
g(f(sqrt2))
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
f(x) = 2x^2 - 1 and g(x) = 3x + 2
Find each value.
f(g(-2))=f(3*-2+2)=f(-4)=2(-4)^2-1=15
g(f(sqrt2))=g(2(sqrt2)^2-1)=g(3)=3*3+2=11
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Cheers,
Stan H.