What two numbers multiply to 780 and add up to 161?

Here we answer the question: "What two numbers multiply to 780 and add up to 161?"

The answer to your question is:

5 and 156

Below we illustrate and prove that 5 and 156 multiply to 780 and add up to 161:

5 × 156 = 780
5 + 156 = 161

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

x² + 161x + 780 = 0

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

(x + 5 ) (x + 156)

To summarize, since 5 and 156 multiply to 780 and add up 161, you know that the following is true:

x² + 161x + 780 = (x + 5 ) (x + 156)

Multiply To One Number and Add Up To Another
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