Question

What two numbers multiply to -120 and add to -2

Answer 1

Hello!

To answer this question we need to find the factors of -120.

The total set (both negative and postive! ) are the following:

• 1, -120
• 2, -60
• 3, -40
• 4, -30
• 5, -24
• 6, -20
• 8, -15
• 10, -12
• 12, -10
• 15, -8
• 20, -6
• 24, -5
• 30, -4
• 40, -3
• 60, -2
• 120, -1

After looking over all of these factors, we can see that 10 · -12 is equal to not only -120, but when the multiplication sign is replace by addition, it is equal to -2!

Hope this helps.