Do you need to know what two numbers multiply to 21 and add to -91? In other words, do you need to find the two numbers whose product is 21 and sum is -91? No problem! The two numbers that multiply to 21 and add to -91 are as follows:
-90.76864
-0.23136
Here is the math to prove that our above answer to "What two numbers multiply to 21 and add to -91?" is correct:
Multiply:
-90.76864 × -0.23136 ≈ 21
Add
-90.76864 + -0.23136 = -91
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.
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