August 2018 1 18 Report
Rozwiąz równania :
a)
(x+1)²-2(x-2)²=-(x-2)(x+2)
b)
3(x+6)+(x+√3)(x-√3)=(x+2)(x-2)
c)
y(y-6)+(y-3)(y+5)=(√2y+1)²


na poziomie gimnazjum :)
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