Question

Can someone please help me solve this Let f(x) = x + 8 and g(x) = x2 - 6x - 7. Find f(g(2))

Answer 1

It is -7. You need the steps?

Answer 2

wat

Answer 3

f(x)=x+8
g(x)=x^(2)-6x-7
f(g(2))

Evaluate f(g(x)) by substituting in the value of g into f.
f(x^(2)-6x-7)=x^(2)-6x-7+8

Add 8 to -7 to get 1.
f(x^(2)-6x-7)=x^(2)-6x+1

Evaluate the result function by replacing x with 2 in the function.
(2)^(2)-6(2)+1

Expand the exponent (2) to the expression.
(2^(2))-6(2)+1

Squaring a number is the same as multiplying the number by itself (2*2).
(2*2)-6(2)+1

Multiply 2 by 2 to get 4.
(4)-6(2)+1

Multiply -6 by the 2 inside the parentheses.
(4)-6*2+1

Multiply -6 by 2 to get -12.
4-12+1

Subtract 12 from 4 to get -8.
-8+1

Add 1 to -8 to get -7.
-7

Hope that helps.