What two numbers multiply to 28 and add up to 11?

Here we answer the question: "What two numbers multiply to 28 and add up to 11?"

The answer to your question is:

4 and 7

Below we illustrate and prove that 4 and 7 multiply to 28 and add up to 11:

4 × 7 = 28
4 + 7 = 11

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

x² + 11x + 28 = 0

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

(x + 4 ) (x + 7)

To summarize, since 4 and 7 multiply to 28 and add up 11, you know that the following is true:

x² + 11x + 28 = (x + 4 ) (x + 7)

Multiply To One Number and Add Up To Another
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