What two numbers multiply to -70 and add up to 9?




Here we answer the question: "What two numbers multiply to -70 and add up to 9?"

The answer to your question is:

-5 and 14


Below we illustrate and prove that -5 and 14 multiply to -70 and add up to 9:

-5 × 14 = -70
-5 + 14 = 9

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

x2 + 9x - 70 = 0

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

(x - 5 ) (x + 14)

To summarize, since -5 and 14 multiply to -70 and add up 9, you know that the following is true:

x2 + 9x - 70 = (x - 5 ) (x + 14)


Multiply To One Number and Add Up To Another
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