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4. Efectuați calculele: a) c) x² - 8x+16 x² - 2x-8 : 2 x²-x-6 5x-15 x² +7x+12 x² -25 2 x² - 4x+4 x² - 9 2 x² +6x+9 : 2 x² +8x+15 x² - 6x +8 x²-x-12 b) d) f) x² +6x+9 x² - 10x+24 : x² +7x+12 x² -16 x² +12x+32 x² +16x+64 2 x² -25 2 x² +9x+20 2 x² +11x+28 x² - 64 x² - 8x+15 2 x² +7x+12​

Răspuns :

Răspuns:

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