Do you need to know what two numbers multiply to -39 and add to 81? In other words, do you need to find the two numbers whose product is -39 and sum is 81? No problem! The two numbers that multiply to -39 and add to 81 are as follows:
-0.47865
81.47865
Here is the math to prove that our above answer to "What two numbers multiply to -39 and add to 81?" is correct:
Multiply:
-0.47865 × 81.47865 ≈ -39
Add
-0.47865 + 81.47865 = 81
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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