Do you need to know what two numbers multiply to -99 and add to 9? In other words, do you need to find the two numbers whose product is -99 and sum is 9? No problem! The two numbers that multiply to -99 and add to 9 are as follows:
-6.42016
15.42016
Here is the math to prove that our above answer to "What two numbers multiply to -99 and add to 9?" is correct:
Multiply:
-6.42016 × 15.42016 ≈ -99
Add
-6.42016 + 15.42016 = 9
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: