Here we answer the question: "What two numbers multiply to -144 and add up to 70?"
The answer to your question is:
-2 and 72
Below we illustrate and prove that -2 and 72 multiply to -144 and add up to 70:
-2 × 72 = -144
-2 + 72 = 70
Are you asking because you are trying to figure out how to factor the following quadratic equation?
x2 + 70x - 144 = 0
If so, the solution to factor the quadratic equation above is:
(x - 2 ) (x + 72)
To summarize, since -2 and 72 multiply to -144 and add up 70, you know that the following is true:
x2 + 70x - 144 = (x - 2 ) (x + 72)
Multiply To One Number and Add Up To Another
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