[tex]Zadanie\\\\1)\\\\(x-2)^2=x^{2} -4x+4\\\\2)\\\\(x+3)^{2}=x^{2} +6x+9\\\\3)\\\\(x-\frac{1}{2})^{2}=x^{2} -x+\frac{1}{4}\\\\4)\\\\(x+\frac{1}{3})^{2}=x^{2}+\frac{2}{3}x+\frac{1}{9}\\\\5)\\\\ (2x-\sqrt{2})^{2}=4x^{2} -4\sqrt{2}x+2\\\\6)\\\\(7x+2y)^{2}= 49x^{2}+ 28xy+4y^{2}[/tex]
