(x-2)squar -36=0 by completing square nethod
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(x-2)^2 - 36 = 0
(x-2)^2 - (6)^2 = 0
a^2 - b^2 = (a+b)(a-b)
(x-2+6)(x-2-6) = 0
(x+4)(x-8) = 0
x(x-8) + 4(x-8) = 0
x^2 - 8x + 4x - 32 = 0
x^2 - 4x = 32
(x-2)^2 - (6)^2 = 0
a^2 - b^2 = (a+b)(a-b)
(x-2+6)(x-2-6) = 0
(x+4)(x-8) = 0
x(x-8) + 4(x-8) = 0
x^2 - 8x + 4x - 32 = 0
x^2 - 4x = 32
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