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2014-01-07T21:32:19+01:00
(2x +3 ) (-x +2) = 0
2x+3 = 0  OU -x + 2 = 0
2x +3 -3 = 0-3 OU -x + 2 -2 = 0-2
2x = -3 OU -x = -2
2x/2 = -3/2 OU x = -2
x = -3/2 OU x = 2

(x-2) (3x+1) - (x-2) ² = 0 
(x-2) (3x + 1 -x + 2) = 0
(x-2) (2x +3) = 0
x -2 = 0 OU 2x + 3 = 0
x-2 +2 = 0 OU 2x + 3-3 = 0-3
x = -2 OU 2x/2 = -3/2
x = -2 OU x = -3/2

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