Решите уравнение(через дискриминат можн на листочке заранее благодарен)
а)x²-x=0 д)7x=4x²
б)x²+5x+6=0 е)x²-6x+5=0
в)5x²+8x-4=0 ж)5x²-3=0
г)x²-6x+7 з)2x²-x+3=0
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