Do you need to know what two numbers multiply to -90 and add to 87? In other words, do you need to find the two numbers whose product is -90 and sum is 87? No problem! The two numbers that multiply to -90 and add to 87 are as follows:
-1.02247
88.02247
Here is the math to prove that our above answer to "What two numbers multiply to -90 and add to 87?" is correct:
Multiply:
-1.02247 × 88.02247 ≈ -90
Add
-1.02247 + 88.02247 = 87
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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