Simplify and show work plz

Question

z²+2z-35/(z-2)(z-5) •-z²-7z+18/(z+7)²

Answer 1

Step 1: Factor all the numerators and denominators:

z² + 2z - 35 = (z + 7)(z - 5)

-z² - 7z + 18 = -(z² + 7z - 18) = -(z + 9)(z - 2)

Step 2: Cancel terms that are the same on top and bottom to simplify:

What's left on top is -(z + 9) and what's left on bottom is (z + 7) so the final answer is:

-(z + 9)/(z + 7)