Posted by **BL** on Tuesday, May 13, 2014 at 10:47pm.

Please help with the below. I know the answer I need help figuring out how to get the answer I am obviously doing something wrong, because I come up with a different answer that what I am supposed to. Here it is: F(X)3Xsquared-5X+1 The correct answer is 12Xsquared-70X+101, the answer I come up with is 12Xsquared-65X+76. This is a composition AKA substitution problem. Here are my notes: F(X)3Xsquared-5X+1

g(X)2X-5

(Fog)(X)F(g(x))

3 (2X-5)-5X+1

6X-15-5X+1

2(3Xsquared-5X+1)-5

6Xsquared-10X+2-5

6Xsquared-10X-3

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