Question 1187927
use a quadratic equation to find two real numbers that satisfy each equation. their sum is 12, and their product is -85
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There are not many pairs of integers with a product of 85.
----> -5 and 17
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Using a quadratic:
x*(12 - x) = -85
x^2 - 12x - 85 = 0
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Now to factor it, you have to find 5 and -17.
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If the solution was not 2 integers, the quadratic would be necessary.