Do you need to know what two numbers multiply to -15 and add to 66? In other words, do you need to find the two numbers whose product is -15 and sum is 66? No problem! The two numbers that multiply to -15 and add to 66 are as follows:
-0.2265
66.2265
Here is the math to prove that our above answer to "What two numbers multiply to -15 and add to 66?" is correct:
Multiply:
-0.2265 × 66.2265 ≈ -15
Add
-0.2265 + 66.2265 = 66
The answers above are rounded if necessary. Therefore, if you double check that the answer above is correct by using a calculator, you may find it to be slightly off.
Multiply Add Calculator
Need another answer? Submit another set of values below: