solve x square - 4 x + 12 by completing square method
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Use the identity (a+b)2=a2+b2+2ab to write the left side of the equation. Take the square root on both sides of the equation and write the value by solving the equation. Take LCM on the left side and cross multiply values. Coefficient of x2 is 1, coefficient of x is 4 and constant value is -12.
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