Do you need to know what two numbers multiply to -129 and add to 99? In other words, do you need to find the two numbers whose product is -129 and sum is 99? No problem! The two numbers that multiply to -129 and add to 99 are as follows:
-1.28632
100.28632
Here is the math to prove that our above answer to "What two numbers multiply to -129 and add to 99?" is correct:
Multiply:
-1.28632 × 100.28632 ≈ -129
Add
-1.28632 + 100.28632 = 99
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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