What two numbers multiply to 990 and add up to 171?

Here we answer the question: "What two numbers multiply to 990 and add up to 171?"

The answer to your question is:

6 and 165

Below we illustrate and prove that 6 and 165 multiply to 990 and add up to 171:

6 × 165 = 990
6 + 165 = 171

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

x² + 171x + 990 = 0

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

(x + 6 ) (x + 165)

To summarize, since 6 and 165 multiply to 990 and add up 171, you know that the following is true:

x² + 171x + 990 = (x + 6 ) (x + 165)

Multiply To One Number and Add Up To Another
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