Do you need to know what two numbers multiply to -64 and add to 78? In other words, do you need to find the two numbers whose product is -64 and sum is 78? No problem! The two numbers that multiply to -64 and add to 78 are as follows:
-0.81206
78.81206
Here is the math to prove that our above answer to "What two numbers multiply to -64 and add to 78?" is correct:
Multiply:
-0.81206 × 78.81206 ≈ -64
Add
-0.81206 + 78.81206 = 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: