You can put this solution on YOUR website! Since each number in the equation is a multiple of 8, dividing the equation by 8 will make the equation easier to solve. After dividing everything by 8, you end up with:
Let's first try to solve for x by factoring. We need for the same two numbers that can be multiplied to give us -15, be added together to give us -2:
1 x -15 = -15; 1 + -15 = -14
-1 x 15 = -15; -1 + 15 = 14
-3 x 5 = -15; -3 + 5 = 2
3 x -5 = -15; 3 + -5 = -2 <----- THIS WORKS!
Now, we set up in factor form:
And put each set of parenthesis equal to zero, and solve for x:
