Determine the difference quotient. URGENT!

Question

Given the following function, determine the difference quotient, f(x+h)−f(x)/h.

f(x)=−7x^2+3x+4

Answer 1

f(x+h) = -7(x+h)² + 3(x+h) +4 = -7x² -14hx -7h²+3x+3h+4

f(x+h)-f(x)= -7h²-14hx+3h

f(x+h)-f(x)/h= -7h-14x+3