What two numbers multiply to 261 and add up to 90?




Here we answer the question: "What two numbers multiply to 261 and add up to 90?"

The answer to your question is:

3 and 87


Below we illustrate and prove that 3 and 87 multiply to 261 and add up to 90:

3 × 87 = 261
3 + 87 = 90

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

x2 + 90x + 261 = 0

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

(x + 3 ) (x + 87)

To summarize, since 3 and 87 multiply to 261 and add up 90, you know that the following is true:

x2 + 90x + 261 = (x + 3 ) (x + 87)


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