Question

F(x)=x^2+6x+7
g(x)=x+2
find g(f(x))

Answer 1

g(x2+6x+7)=x2+6x+9

Explanation:

Evaluate g(f(x)) by substituting in the value of f into g

g(2x)=6(2x)−7

Multiply 2 by 6

g(2x)=12x−7