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September 21, 2014

September 21, 2014

Posted by **timothy** on Sunday, December 9, 2012 at 5:34pm.

x^2-3x=4

please show work

- math -
**Steve**, Sunday, December 9, 2012 at 8:08pmx^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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