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:

-14 and 5

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

-14 × 5 = -70
-14 + 5 = -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 - 14 ) (x + 5)

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

x² - 9x - 70 = (x - 14 ) (x + 5)

Multiply To One Number and Add Up To Another
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