Question

There are two factors of -36 such that one factor is 11 less than half of the other factor. Choose all the pairs of these factors.
-2 and 18

-6 and 6

3 and -12

4 and -9

Answer 1

let x and y be the factors of -36 but x must equal (y/2) - 11
Now use algebra, you have two equations and two unknowns.

Answer 2

Using substitution: x =-36/y

-36/y = (y/2) - 11