What two numbers multiply to -450 and add up to 85?

Here we answer the question: "What two numbers multiply to -450 and add up to 85?"

The answer to your question is:

-5 and 90

Below we illustrate and prove that -5 and 90 multiply to -450 and add up to 85:

-5 × 90 = -450
-5 + 90 = 85

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

x² + 85x - 450 = 0

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

(x - 5 ) (x + 90)

To summarize, since -5 and 90 multiply to -450 and add up 85, you know that the following is true:

x² + 85x - 450 = (x - 5 ) (x + 90)

Multiply To One Number and Add Up To Another
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