What two numbers multiply to 720 and add up to -61?




Here we answer the question: "What two numbers multiply to 720 and add up to -61?"

The answer to your question is:

-45 and -16


Below we illustrate and prove that -45 and -16 multiply to 720 and add up to -61:

-45 × -16 = 720
-45 + -16 = -61

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

x2 - 61x + 720 = 0

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

(x - 45 ) (x - 16)

To summarize, since -45 and -16 multiply to 720 and add up -61, you know that the following is true:

x2 - 61x + 720 = (x - 45 ) (x - 16)


Multiply To One Number and Add Up To Another
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