Do you need to know what two numbers multiply to -15 and add to 18? In other words, do you need to find the two numbers whose product is -15 and sum is 18? No problem! The two numbers that multiply to -15 and add to 18 are as follows:
-0.79796
18.79796
Here is the math to prove that our above answer to "What two numbers multiply to -15 and add to 18?" is correct:
Multiply:
-0.79796 × 18.79796 ≈ -15
Add
-0.79796 + 18.79796 = 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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