Do you need to know what two numbers multiply to -78 and add to 39? In other words, do you need to find the two numbers whose product is -78 and sum is 39? No problem! The two numbers that multiply to -78 and add to 39 are as follows:
-1.90677
40.90677
Here is the math to prove that our above answer to "What two numbers multiply to -78 and add to 39?" is correct:
Multiply:
-1.90677 × 40.90677 ≈ -78
Add
-1.90677 + 40.90677 = 39
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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