Do you need to know what two numbers multiply to -99 and add to -90? In other words, do you need to find the two numbers whose product is -99 and sum is -90? No problem! The two numbers that multiply to -99 and add to -90 are as follows:
-91.08687
1.08687
Here is the math to prove that our above answer to "What two numbers multiply to -99 and add to -90?" is correct:
Multiply:
-91.08687 × 1.08687 ≈ -99
Add
-91.08687 + 1.08687 = -90
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.
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