Here we answer the question: "What two numbers multiply to -658 and add up to 87?"
The answer to your question is:
-7 and 94
Below we illustrate and prove that -7 and 94 multiply to -658 and add up to 87:
-7 × 94 = -658
-7 + 94 = 87
Are you asking because you are trying to figure out how to factor the following quadratic equation?
x2 + 87x - 658 = 0
If so, the solution to factor the quadratic equation above is:
(x - 7 ) (x + 94)
To summarize, since -7 and 94 multiply to -658 and add up 87, you know that the following is true:
x2 + 87x - 658 = (x - 7 ) (x + 94)
Multiply To One Number and Add Up To Another
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