HELPPP MEE ALGEBRAA IMAGE BELOW

Answer:
f(x)=0 or 8 I'm honestly not sure which but I know one of these is right
Step-by-step explanation:
subtract x^2-2x from both sides -x^2+8x=0
factor left side of the equation x(-x+8)=0
set factors equal to zero
x=0 or x=-x+8=0
x=0 or x=8
HOPE THIS HELPS!!! :)
Answer:
15
Step-by-step explanation:
f(x)= x^2 - 2x
f(5) = 5^2 - 2(5) = 25 -10 = 15