What two numbers multiply to -715 and add up to -42?




Here we answer the question: "What two numbers multiply to -715 and add up to -42?"

The answer to your question is:

-55 and 13


Below we illustrate and prove that -55 and 13 multiply to -715 and add up to -42:

-55 × 13 = -715
-55 + 13 = -42

Are you asking because you are trying to figure out how to factor the following quadratic equation?

x2 - 42x - 715 = 0

If so, the solution to factor the quadratic equation above is:

(x - 55 ) (x + 13)

To summarize, since -55 and 13 multiply to -715 and add up -42, you know that the following is true:

x2 - 42x - 715 = (x - 55 ) (x + 13)


Multiply To One Number and Add Up To Another
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