Do you need to know what two numbers multiply to 128 and add to -42? In other words, do you need to find the two numbers whose product is 128 and sum is -42? No problem! The two numbers that multiply to 128 and add to -42 are as follows:
-38.69181
-3.30819
Here is the math to prove that our above answer to "What two numbers multiply to 128 and add to -42?" is correct:
Multiply:
-38.69181 × -3.30819 ≈ 128
Add
-38.69181 + -3.30819 = -42
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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