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15 votes
15 votes
If f(x) = 3x² and g(x)=2x-3, find f(g(x)).

User AndraeRay
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1 Answer

7 votes
7 votes

Answer: 36/24=18/12=9/6= or 1 1/3

Explanation:

plug g(x) into f(x) then follow f(x) by 3(2x-3)^2 this foils out to be

36 plus or minus sqrt (36)^2-4(12)(270) over 24

the variables in the square root cancel so your left with 36/24 and in its simplest form its 1 1/3

User Enough Technology
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