Do you need to know what two numbers multiply to -80 and add to 90? In other words, do you need to find the two numbers whose product is -80 and sum is 90? No problem! The two numbers that multiply to -80 and add to 90 are as follows:
-0.88028
90.88028
Here is the math to prove that our above answer to "What two numbers multiply to -80 and add to 90?" is correct:
Multiply:
-0.88028 × 90.88028 ≈ -80
Add
-0.88028 + 90.88028 = 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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