February 2019 0 19 Report
1.(4 pierwiastki z 5+ pierwiastek z 3)(4 pierwiastki z 5 - pierwiastek z 3)
2.x= pierwiastek z 2+1, y= pierwiastek z 2 - 1
3.a) (x+1)^2-(x-1)^2+(x+2)^2+(2-x)^2
b)2(3+x)2 - (2-x)2 - 3(2-x)(2+x)

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