Here we answer the question: "What two numbers multiply to 685 and add up to 142?"
The answer to your question is:
5 and 137
Below we illustrate and prove that 5 and 137 multiply to 685 and add up to 142:
5 × 137 = 685
5 + 137 = 142
Are you asking because you are trying to figure out how to factor the following quadratic equation?
x2 + 142x + 685 = 0
If so, the solution to factor the quadratic equation above is:
(x + 5 ) (x + 137)
To summarize, since 5 and 137 multiply to 685 and add up 142, you know that the following is true:
x2 + 142x + 685 = (x + 5 ) (x + 137)
Multiply To One Number and Add Up To Another
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