Răspunsuri

2014-08-25T14:38:20+03:00
A) (x²-6)-5x-5=x²+1+6 5x³+30x-5x--5=x²+1+6 5x³+30x-5x-x²=1+6+5 30x=12 x=30:12 x=2,5
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