Do you need to know what two numbers multiply to -100 and add to 78? In other words, do you need to find the two numbers whose product is -100 and sum is 78? No problem! The two numbers that multiply to -100 and add to 78 are as follows:
-1.26164
79.26164
Here is the math to prove that our above answer to "What two numbers multiply to -100 and add to 78?" is correct:
Multiply:
-1.26164 × 79.26164 ≈ -100
Add
-1.26164 + 79.26164 = 78
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.
Multiply Add Calculator
Need another answer? Submit another set of values below: