Do you need to know what two numbers multiply to 64 and add to -129? In other words, do you need to find the two numbers whose product is 64 and sum is -129? No problem! The two numbers that multiply to 64 and add to -129 are as follows:
-128.50195
-0.49805
Here is the math to prove that our above answer to "What two numbers multiply to 64 and add to -129?" is correct:
Multiply:
-128.50195 × -0.49805 ≈ 64
Add
-128.50195 + -0.49805 = -129
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: