3 years ago

Let f(x)=3x^2-x+2 and g(x) = 5x^2-1. Find f(g(x)). HURRY PLEASE

1 answer:

8 0

F(x)=3x²-x+2
g(x)=5x²-1
f(g(x))=3(5x²-1)²-(5x²-1)+2
=3(25x⁴-10x²+1)-(5x²-1)+2
=75x⁴-30x²+3-5x²+1+2
=75x⁴-35x²+6

Answer: f(g(x))=75x⁴-35x²+6

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