What two numbers multiply to be 135 but add to be 6. Look at the factors of -15-15 and 1-1 and 15-5 and 3. What Two Numbers Multiply To 36 And Add To 7 Brainly Com What two numbers multiply to get -100 and add to get -15-115. . When you are multiplying negative numbers two -s makes a positive and 4 x 9 36. They add to a negative OR they must both be negative. What multiplies to 36 and adds up to -12. What multiplies into 126 and adds into 15. Multiplies to adds to positive 5. Notice that the last one produces a sum of 2. Also -4 -9 -13 Because a and a - makes a negative so it is saying -4 - 9. Positive or negative decimals. What two numbers add to negative 18 and multiply to 45. Guest Mar 23 2015. What multiplies to 36 and adds to -15. Lets identify and then set aside the numbers. The common multiples of 3 and 5 are the multiples of 15. Which numbers give you negative 15 w...