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What two numbers when added the sum is 10, and when multiplied the product is 40 ?

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SHOW  WORK !!
asked Nov 12, 2013 in ALGEBRA 1 by payton Apprentice

1 Answer

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Given that sum of th two numbers is 10 and product is 40.

Let two numbers be x and y

x + y = 10

y = 10 - x

Substitute y value in xy = 40

x(10 - x) = 40

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It has no exact roots we have to use roots of the quadratic equation formula

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Here a = 1 , b = -10 and c = 40.

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Therefore the two numbers are not real they are complex numbers they are

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answered Nov 12, 2013 by jouis Apprentice

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