SOLUTION: if f(x)=2x^2+3 , then (f(x+h)-f(x))/h equals ?

Algebra ->  Equations -> SOLUTION: if f(x)=2x^2+3 , then (f(x+h)-f(x))/h equals ?      Log On


   



Question 1044633: if f(x)=2x^2+3 , then (f(x+h)-f(x))/h equals ?
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
Do the substitution and simplify. A few algebra steps.

%28%282%29%28x%2Bh%29%5E2%2B3%29-%282x%5E2%2B3%29%29%2Fh, the first step.

%282%28x%5E2%2B2hx%2Bh%5E2%29%2B3-2x%5E2-3%29%2Fh

.
.
right?