What two numbers multiply to -64 and add up to -12?




Here we answer the question: "What two numbers multiply to -64 and add up to -12?"

The answer to your question is:

-16 and 4


Below we illustrate and prove that -16 and 4 multiply to -64 and add up to -12:

-16 × 4 = -64
-16 + 4 = -12

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

x2 - 12x - 64 = 0

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

(x - 16 ) (x + 4)

To summarize, since -16 and 4 multiply to -64 and add up -12, you know that the following is true:

x2 - 12x - 64 = (x - 16 ) (x + 4)


Multiply To One Number and Add Up To Another
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