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what number should be added to the expression x^2+10x


label Algebra
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what number should be added to the expression x^2+10x to change it into a perfect square trinomial

Nov 19th, 2017

c = (b/2)^2

c = (10/2)^2

c = 5^2

c = 25

x^2 + 10x + 25 = (x+5) ^2

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Feb 14th, 2015

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