Do you need to know what two numbers multiply to -21 and add to 123? In other words, do you need to find the two numbers whose product is -21 and sum is 123? No problem! The two numbers that multiply to -21 and add to 123 are as follows:
-0.1705
123.1705
Here is the math to prove that our above answer to "What two numbers multiply to -21 and add to 123?" is correct:
Multiply:
-0.1705 × 123.1705 ≈ -21
Add
-0.1705 + 123.1705 = 123
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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