Question 1061170
Note: please use parenthesis to write (-3x+5)/(7x+4) so it's clear what is being divided



{{{f(x) = (-3x+5)/(7x+4)}}}



{{{f(x+h) = (-3(x+h)+5)/(7(x+h)+4)}}} Replace every copy of x with (x+h)



{{{f(x+h) = (-3x-3h+5)/(7x+7h+4)}}} Distribute



So the final answer is choice A