What two numbers multiply to 989 and add up to 990?




Here we answer the question: "What two numbers multiply to 989 and add up to 990?"

The answer to your question is:

1 and 989


Below we illustrate and prove that 1 and 989 multiply to 989 and add up to 990:

1 × 989 = 989
1 + 989 = 990

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

x2 + 990x + 989 = 0

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

(x + 1 ) (x + 989)

To summarize, since 1 and 989 multiply to 989 and add up 990, you know that the following is true:

x2 + 990x + 989 = (x + 1 ) (x + 989)


Multiply To One Number and Add Up To Another
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