Do you need to know what two numbers multiply to -99 and add to 40? In other words, do you need to find the two numbers whose product is -99 and sum is 40? No problem! The two numbers that multiply to -99 and add to 40 are as follows:
-2.33831
42.33831
Here is the math to prove that our above answer to "What two numbers multiply to -99 and add to 40?" is correct:
Multiply:
-2.33831 × 42.33831 ≈ -99
Add
-2.33831 + 42.33831 = 40
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: