Answer:
f=
−2x^2+y /10x+20
Step-by-step explanation:
Let's solve for f.
y=2x^2+5(x+2)f(2)
Step 1: Flip the equation.
10fx+2x^2+20f=y
Step 2: Add -2x^2 to both sides.
10fx+2x^2+20f+−2x^2=y+−2x^2
10fx+20f=−2x^2+y
Step 3: Factor out variable f.
f(10x+20)=−2x^2+y
Step 4: Divide both sides by 10x+20.
f(10x+20) /
10x+20
=
−2x2+y
10x+20
