Let and for all real

MATHEMATICS · Single correct · CBSE · Mathematics · Relations and Functions · Relations and Functions

Problem

Let f(x)=3x−2f(x)=3x-2 and g(x)=x2−4xg(x)=x^2-4x for all real xx. What is (g∘f)(x)(g\circ f)(x)? (a) 9x2−24x+49x^2-24x+4 (b) 9x2−12x+49x^2-12x+4 (c) 9x2−24x+129x^2-24x+12 (d) 9x2−18x+129x^2-18x+12

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