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19 Efectuați: 5 1 4x-6 4x-3 4x+3 16x-9 2 x-1 55-11x X+5 X-25 x²-10x+25 ( + x-y x-2√xy + y √x - √y 2x 5x 4x-3 4x+3 X OG* 1 2 X-5 X-4 X² +4x+16 5x+3 4x-3 1 2 -9 x+3 x-3 1 √x - √y (4x-3)* 4x²-3x+3 3)(x- 7x²-70x+175 14(7x+22) X-3+ 6x² -24y² 18 +8 5-x² X+3 + 10 X+5 9 x-2y 53-x-x²) x(x+4)+16 7x-3-1; X³ -64 2x+1 X-4 6x+7) x²-16 X+4 2x+25 3(x+2y); 2 12x+10 2-x x+1 x²+x) x² + 2x² + x X+7 X+3 va rog să-mi dați răspunsul ​