Do you need to know what two numbers multiply to 9 and add to -15? In other words, do you need to find the two numbers whose product is 9 and sum is -15? No problem! The two numbers that multiply to 9 and add to -15 are as follows:
-14.37386
-0.62614
Here is the math to prove that our above answer to "What two numbers multiply to 9 and add to -15?" is correct:
Multiply:
-14.37386 × -0.62614 ≈ 9
Add
-14.37386 + -0.62614 = -15
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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