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20 June, 14:38

Use a quadratic equation to find two real numbers that satisfy the situation. The sum of the two numbers is 12, and their product is - 28. a. 2, 14 c. 2, - 14 b. - 2, 14 d. no such numbers exist

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  1. 20 June, 15:09
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    The answer is B

    Since the product is negative we exclude A because positive*positive doesn't yield negative.

    B. - 2 + 14 = 12 AND - 2*12 = - 28 (Which is the correct answer)

    C. - 14 + 2 = - 12 AND - 14*2 = - 28 (But it is the wrong answer because it yielded negative 12)
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