If f(g(x)) = 4x2 - 8x and f(x) = x2 - 4, then g(x) = A 4 - - Maths - Relations and Functions

Question

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If f(g(x)) = 4x2 - 8x and f(x) = x2 - 4,
then g(x) =
A 4 - x
B x
C 2x - 2
D 4x
E x2

Antash Manocha · Accepted Answer

​ If f(g(x)) = 4x2 - 8x and f(x) = x2 - 4, then g(x) = A. 4 - x B. x C. 2x - 2 D. 4x E. x2