What two numbers multiply to 425 and add up to 90?

Here we answer the question: "What two numbers multiply to 425 and add up to 90?"

The answer to your question is:

5 and 85

Below we illustrate and prove that 5 and 85 multiply to 425 and add up to 90:

5 × 85 = 425
5 + 85 = 90

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

x² + 90x + 425 = 0

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

(x + 5 ) (x + 85)

To summarize, since 5 and 85 multiply to 425 and add up 90, you know that the following is true:

x² + 90x + 425 = (x + 5 ) (x + 85)

Multiply To One Number and Add Up To Another
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