(x-2)(x+1)=(x-1)(x+3)

1.	(x-2)(x+1)=(x-1)(x+3)
Answer» (x-2)(x+1)=(x-1)(x+3)x (x + 1) - 2( x+ 1) = x (x + 3) - 1 ( x + 3)x2 + x - 2x - 2 = x2 + 3x - 1x - 3x2 - x - 2 = x2 + 2 x - 3- x - 2x = -3 + 2- 3x = -1x = 1/3

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