Do you need to know what two numbers multiply to 21 and add to 40? In other words, do you need to find the two numbers whose product is 21 and sum is 40? No problem! The two numbers that multiply to 21 and add to 40 are as follows:
0.53208
39.46792
Here is the math to prove that our above answer to "What two numbers multiply to 21 and add to 40?" is correct:
Multiply:
0.53208 × 39.46792 ≈ 21
Add
0.53208 + 39.46792 = 40
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: