I would like to know step by step how to solve this problem.

asked Nov 5, 2024 218k views

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Answer:

$\sf{}\\Solution:\\f(x)=x-7,\\g(x)=x^2\\Now,\\gof(x)=g\{f(x)\}=g(x-7)^2\\\therefore\ gof(x)=(x-7)^2$

$\sf\\\therefore\ g(f(4))=gof(4)=(4-7)^2=(-3)^2=9$

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