Here we answer the question: "What two numbers multiply to 438 and add up to -221?"
The answer to your question is:
-219 and -2
Below we illustrate and prove that -219 and -2 multiply to 438 and add up to -221:
-219 × -2 = 438
-219 + -2 = -221
Are you asking because you are trying to figure out how to factor the following quadratic equation?
x2 - 221x + 438 = 0
If so, the solution to factor the quadratic equation above is:
(x - 219 ) (x - 2)
To summarize, since -219 and -2 multiply to 438 and add up -221, you know that the following is true:
x2 - 221x + 438 = (x - 219 ) (x - 2)
Multiply To One Number and Add Up To Another
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