Do you need to know what two numbers multiply to -99 and add to 89? In other words, do you need to find the two numbers whose product is -99 and sum is 89? No problem! The two numbers that multiply to -99 and add to 89 are as follows:
-1.09879
90.09879
Here is the math to prove that our above answer to "What two numbers multiply to -99 and add to 89?" is correct:
Multiply:
-1.09879 × 90.09879 ≈ -99
Add
-1.09879 + 90.09879 = 89
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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