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posted by timothy on Sunday, December 9, 2012 at 5:34pm.
solve by completing the square x^2-3x=4 please show work
x^2 - 2(3/2)x = 4 x^2 - 2(3/2)x + (3/2)^2 = 4 + (3/2)^2 (x-3/2)^2 = 25/4 (x-3/2)^2 = (5/2)^2 x - 3/2 = ±5/2 x = 3/2 ± 5/2 = -1 or 4
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