Do you need to know what two numbers multiply to -81 and add to 7? In other words, do you need to find the two numbers whose product is -81 and sum is 7? No problem! The two numbers that multiply to -81 and add to 7 are as follows:
-6.1566
13.1566
Here is the math to prove that our above answer to "What two numbers multiply to -81 and add to 7?" is correct:
Multiply:
-6.1566 × 13.1566 ≈ -81
Add
-6.1566 + 13.1566 = 7
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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