What two numbers multiply to -135 and add up to 6?




Here we answer the question: "What two numbers multiply to -135 and add up to 6?"

The answer to your question is:

-9 and 15


Below we illustrate and prove that -9 and 15 multiply to -135 and add up to 6:

-9 × 15 = -135
-9 + 15 = 6

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

x2 + 6x - 135 = 0

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

(x - 9 ) (x + 15)

To summarize, since -9 and 15 multiply to -135 and add up 6, you know that the following is true:

x2 + 6x - 135 = (x - 9 ) (x + 15)


Multiply To One Number and Add Up To Another
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