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1) (x-4)la puterea2=
2)(x-6) la puterea2=
3)(2x+5)la puterea2=
4)(radical 3x-1) la puterea2=
5)(5x la puterea2+2)la puterea2=
6) 25x la puterea4=(5xla puterea2)totul la puterea2-2 la puterea2