解方程(2X-1)^2=6X-3
2013-09-02
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(2X-1)^2=6X-3
==> 4x^2 - 4x + 1 = 6x - 3
==> 4x^2 - 10x + 4 = 0
==> 2x^2 - 5x + 2 = 0
==> (2x - 1)(x - 2) = 0
==> x = 1/2, 2
==> 4x^2 - 4x + 1 = 6x - 3
==> 4x^2 - 10x + 4 = 0
==> 2x^2 - 5x + 2 = 0
==> (2x - 1)(x - 2) = 0
==> x = 1/2, 2
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