if f(x)= 5x - x2, find f(b-3)
f(x)= 5x - x^2, find f(b-3)
5 [b - 3] - [b - 3]^2 =
5b - 15 - [b^2 - 6b + 9 ] =
5b - 15 - b^2 + 6b - 9 =
-b^2 +11b - 24
thank you!!
