PLZ HELP ME!! if F(x) = x - 7 and G(x) = x, what is G(FX))?

G(F(x)) = x-7

Step-by-step explanation:

G(F(x)) is composition of functions that means to plug in F(X) into G function.The new variable will be F(X) instead of  X.

G(x) = x, F(x) = x - 7

G(F(x)) = x-7

i believe the answer is letter c) 8

step-by-step explanation:

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.