
Do you need to know what two numbers multiply to 81 and add to -99? In other words, do you need to find the two numbers whose product is 81 and sum is -99? No problem! The two numbers that multiply to 81 and add to -99 are as follows:
-98.17494
-0.82506
Here is the math to prove that our above answer to "What two numbers multiply to 81 and add to -99?" is correct:
Multiply:
-98.17494 × -0.82506 ≈ 81
Add
-98.17494 + -0.82506 = -99
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: