What two numbers multiply to -820 and add up to 72?




Here we answer the question: "What two numbers multiply to -820 and add up to 72?"

The answer to your question is:

-10 and 82


Below we illustrate and prove that -10 and 82 multiply to -820 and add up to 72:

-10 × 82 = -820
-10 + 82 = 72

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

x2 + 72x - 820 = 0

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

(x - 10 ) (x + 82)

To summarize, since -10 and 82 multiply to -820 and add up 72, you know that the following is true:

x2 + 72x - 820 = (x - 10 ) (x + 82)


Multiply To One Number and Add Up To Another
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