You must add 6 to complete the square.
x^2+12x+(6)=-5(6)
First plug in (x+h) for x in the function.
f(x+h)= 2(x-h)^2-3(x-h) = 2(x^2-2xh+h^2)-3x-3h =
2x^2-4xh+2h^2-3x-3h - 2x^2 +3x =
(-4xh +2h^2-3h)/h
-4x +2h-3
Answer:
60.35
Step-by-step explanation:
15% as a decimal is 0.15 so, 60.5 - 0.15 = 60.35