Here we answer the question: "What two numbers multiply to -790 and add up to -153?"
The answer to your question is:
-158 and 5
Below we illustrate and prove that -158 and 5 multiply to -790 and add up to -153:
-158 × 5 = -790
-158 + 5 = -153
Are you asking because you are trying to figure out how to factor the following quadratic equation?
x2 - 153x - 790 = 0
If so, the solution to factor the quadratic equation above is:
(x - 158 ) (x + 5)
To summarize, since -158 and 5 multiply to -790 and add up -153, you know that the following is true:
x2 - 153x - 790 = (x - 158 ) (x + 5)
Multiply To One Number and Add Up To Another
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