Do you need to know what two numbers multiply to -81 and add to -18? In other words, do you need to find the two numbers whose product is -81 and sum is -18? No problem! The two numbers that multiply to -81 and add to -18 are as follows:
-21.72792
3.72792
Here is the math to prove that our above answer to "What two numbers multiply to -81 and add to -18?" is correct:
Multiply:
-21.72792 × 3.72792 ≈ -81
Add
-21.72792 + 3.72792 = -18
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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