Question

What are the zeros of the equation -6x(x+12)-15(x+12)=0

Answer 1

Finding the zeroes of a equation also means finding the solutions that x satisfy.
First, we distribute -6x to (x+12) and -15 to (x+12)
This gives us   $-6x^2-72x-15x-180=0$ We simplify to get 
 $-6x^2-87x-180=0$
Next, we can apply the we factor  $-6x^2-87x-180$
After factoring, you should get 
$(-36-3x)(5+2x)=0$
We set (-36x-3x) and  (5+2x) equal to 0.
-36-3x=0
-3x=36
x=-12
_______________________
5+2x=0
2x=-5
x=-5/2
Your answers are -12 and $\frac{-5}{2}$

Answer 2

X=-12,-5/2 you could find the answer by solving for x