Do you need to know what two numbers multiply to -16 and add to 81? In other words, do you need to find the two numbers whose product is -16 and sum is 81? No problem! The two numbers that multiply to -16 and add to 81 are as follows:
-0.19705
81.19705
Here is the math to prove that our above answer to "What two numbers multiply to -16 and add to 81?" is correct:
Multiply:
-0.19705 × 81.19705 ≈ -16
Add
-0.19705 + 81.19705 = 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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