What two numbers multiply to 72 and add up to -22?




Here we answer the question: "What two numbers multiply to 72 and add up to -22?"

The answer to your question is:

-18 and -4


Below we illustrate and prove that -18 and -4 multiply to 72 and add up to -22:

-18 × -4 = 72
-18 + -4 = -22

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

x2 - 22x + 72 = 0

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

(x - 18 ) (x - 4)

To summarize, since -18 and -4 multiply to 72 and add up -22, you know that the following is true:

x2 - 22x + 72 = (x - 18 ) (x - 4)


Multiply To One Number and Add Up To Another
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