Question

F(x)=3x-1 and g(x)=2-x^2 calculate f(g(2))

Answer 1

-7

Explanation:

f[g(x)]= 3[2-x²] - 1

= 6 - 3x² -1

= 5 - 3x²

Now,

f[g(2)]= 5 - 3 × 2²

= 5 - 3 × 4

= 5 - 12

= -7