Do you need to know what two numbers multiply to -21 and add to -84? In other words, do you need to find the two numbers whose product is -21 and sum is -84? No problem! The two numbers that multiply to -21 and add to -84 are as follows:
-84.24926
0.24926
Here is the math to prove that our above answer to "What two numbers multiply to -21 and add to -84?" is correct:
Multiply:
-84.24926 × 0.24926 ≈ -21
Add
-84.24926 + 0.24926 = -84
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: