What two numbers multiply to 720 and add up to 98?

Here we answer the question: "What two numbers multiply to 720 and add up to 98?"

The answer to your question is:

8 and 90

Below we illustrate and prove that 8 and 90 multiply to 720 and add up to 98:

8 × 90 = 720
8 + 90 = 98

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

x² + 98x + 720 = 0

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

(x + 8 ) (x + 90)

To summarize, since 8 and 90 multiply to 720 and add up 98, you know that the following is true:

x² + 98x + 720 = (x + 8 ) (x + 90)

Multiply To One Number and Add Up To Another
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