solve for a perfect square

label Algebra
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schedule 1 Day
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u^2-8u+

i tried using 4 but i didnt get it right

Jun 22nd, 2015

The second term is -8u .

so -2u * x = -8u

   x = -8u/-2u =4

So the last terms should be 4^2 = 16


because u^2-8u+16 is a perfect square = (u-2)^2


Please let me know if you need any clarification. I'm always happy to answer your questions.
Jun 22nd, 2015

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