math
posted by John .
Given the funtion G(t) = t2  7t + 5, evaluate G(1+h)G(1)/h

g(1+h) = (1+h)^2  7(1+h) + 5
= 1  2h + h^2 + 7  7h + 5
= h^2  9h + 13
g(1) = 1 + 7 + 5 = 13
( g(1+h)  g(1) )/h = (h^2  9h + 13  13)/h
= h  9