Do you need to know what two numbers multiply to -81 and add to 13? In other words, do you need to find the two numbers whose product is -81 and sum is 13? No problem! The two numbers that multiply to -81 and add to 13 are as follows:
-4.6018
17.6018
Here is the math to prove that our above answer to "What two numbers multiply to -81 and add to 13?" is correct:
Multiply:
-4.6018 × 17.6018 ≈ -81
Add
-4.6018 + 17.6018 = 13
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: