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x2-3x + (-3/2)2 = 0 + (-3/2)2
x2-3x+2.25 =0 + 2.25
(x-1.5)2 = 2.25
SQROOT [(x-1.5)2] = SQROOT [2.25]
x-1.5 = 1.5 & x-1.5 =-1.5
x = 3 & x=0
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