Do you need to know what two numbers multiply to -81 and add to 4? In other words, do you need to find the two numbers whose product is -81 and sum is 4? No problem! The two numbers that multiply to -81 and add to 4 are as follows:
-7.21954
11.21954
Here is the math to prove that our above answer to "What two numbers multiply to -81 and add to 4?" is correct:
Multiply:
-7.21954 × 11.21954 ≈ -81
Add
-7.21954 + 11.21954 = 4
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: