What two numbers multiply to -355 and add up to -66?

Here we answer the question: "What two numbers multiply to -355 and add up to -66?"

The answer to your question is:

-71 and 5

Below we illustrate and prove that -71 and 5 multiply to -355 and add up to -66:

-71 × 5 = -355
-71 + 5 = -66

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

x² - 66x - 355 = 0

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

(x - 71 ) (x + 5)

To summarize, since -71 and 5 multiply to -355 and add up -66, you know that the following is true:

x² - 66x - 355 = (x - 71 ) (x + 5)

Multiply To One Number and Add Up To Another
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