Question

f(X)= 2x² and g(x)=3x² find fog ???
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Answer 1

f(x) = 2x^2

g(x) = 3x^2

Thus,

fog(x) = f{g(x)}

= f(3x^2) [ since, g(x) = 3x^2]

= 2(3x^2)^2

= 2(9x^4)

= 18x^4

Hence, fog(x) = 18x^4

Answer 2

hope it will help you

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