The answer plz

We can factor the equation x² + 4x - 12 by looking for two numbers that multiply up to -12 and add up to 4x. 
Some choices are 12 and -1,  4 and -3 and 6 and -2. 
Out of the three, only the difference of 6 and -2 is equal to 4. Notice -6 and 2 would not work because they add up to -4 and not 4 in 4x. 
The factored equation's skeleton would be (x- ?)(x+?) 
we can plug in the numbers and the answer would be: 
(x+6)(x-2)

Check: 
factor is out 
x²-12x + 6x -12 
x²-4x - 12 

Chope you get it right gl