What two numbers multiply to -136 and add up to 66?




Here we answer the question: "What two numbers multiply to -136 and add up to 66?"

The answer to your question is:

-2 and 68


Below we illustrate and prove that -2 and 68 multiply to -136 and add up to 66:

-2 × 68 = -136
-2 + 68 = 66

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

x2 + 66x - 136 = 0

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

(x - 2 ) (x + 68)

To summarize, since -2 and 68 multiply to -136 and add up 66, you know that the following is true:

x2 + 66x - 136 = (x - 2 ) (x + 68)


Multiply To One Number and Add Up To Another
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