What value should be added to the expression to create a perfect square

Algebra
Tutor: None Selected Time limit: 1 Day

x^2-20x

Mar 10th, 2015

Answer:

here, in orderto get a perfect square, we can add and subtract 100, namely:

x^2 - 20 x +100 -100 = (x-10)^2 -100

Mar 10th, 2015

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Mar 10th, 2015
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