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For f(x)=2x + 1 and g(x)=x²-7, find (fog)(x)
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For f(x)=2x + 1 and g(x)=x²-7, find (fog)(x)

User XikiryoX
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f(g(x))= f(x²-7)= 2(x²-7)+1

2(x²-7)+1

2x²-14+1

2x²-13

So (fog)(x)= 2x²-13. Hope this helps!
User Nerdy Beast
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