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04-05-2018
Mathematics

contestada

What number must you add to the expression below to complete the square? x^2-20x?

Respuesta :

calculista calculista

14-05-2018

we have that
x²-20x
Group terms that contain the same variable
(x²-20x)
Complete the square
(x²-20x+10²)------> (x-10)²

the answer is
the number must be 100

Answer Link

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