rozwiąż nierówność.
a) (3x-6)(x+2)> (x-1)(x+3)
b) 2x^2+ (x+1)^2< 8x+1
c) (x+2)^2- 1< 2(x-3)^2
a) (-9x)(2x) >(-1x)(3x)= -18x>4x
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a) (-9x)(2x) >(-1x)(3x)= -18x>4x