Do you need to know what two numbers multiply to -129 and add to 66? In other words, do you need to find the two numbers whose product is -129 and sum is 66? No problem! The two numbers that multiply to -129 and add to 66 are as follows:
-1.89986
67.89986
Here is the math to prove that our above answer to "What two numbers multiply to -129 and add to 66?" is correct:
Multiply:
-1.89986 × 67.89986 ≈ -129
Add
-1.89986 + 67.89986 = 66
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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