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Denisa23
a fost răspuns

1) (4x+3)(x-1)-5(xpatrat-2)=...
2) (X+7)(2x-1)-(radical2x)la patrat=...
3) (X-3)(4x+1)-(-2x)la patrat+6(x+1)=...
4) (x+5)(6x-1)+24xpatrat : (-4x patrat)=...
Repede!!!

Răspuns :

Miha1107
1.4x²-4x+3x-3-5x²+10=-x²+x+7
2.2x²-x+14x-7-2x=2x²+11x-7
3.4x²+x-12x-3-4x²+6x+1=-5x-2 sau-(5x+2)
4.6x²-x+30x-5-6=6x²+29x-11

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