Question

Let R be the set of real numbers. If f(x) = x2 and g(x) = 2x + 1, then fog(x) is equal to ?​

Answer 1

Answer:

Correct option is

C

3(2x+1)

(fog)(x)=f(g(x))=2(3x+2)−1=6x+4−1=6x+3=3(2x+1)

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