Answer:
c!!
Step-by-step explanation:
last saturday i did a worksheet that had the sae question
(x-y)^2 +4xy = (x+y)^2
FOIL
x^2 -2xy+y^2 +4xy = (x+y)^2 x^2 -2xy
Combine like terms
x^2 +2xy +y^2 = (x+y)^2 x^2 +2xy
Factor
(x+y)^2 = (x+y)^2 (x+y)^2
Answer: g(f(4))=9
Step-by-step explanation:
To find g(f(4)), you first find f(4). Then, you plug it into g(x).
f(4)=4-7 [subtract]
f(4)=-3
Now, we know f(4) into g(x).
g(f(4))=(-3)² [exponent]
g(f(4))=9
Now, we know that g(f(4))=9.
