Răspunsuri

2014-04-16T17:53:52+03:00
1)(x+2)(x-3)²=(x+2)(x²-6x+9)=x³-6x²+9x+2x²-12x+18=x³-4x²-3x+18

2)(x-5)(2x+4):(x+2)=( x-5)2(x+2):(x+2)=2(x-5)=2x-10
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