Rozwiąż : (2kn-2)^2= (2mx+4x)^2=

[latex](2kn-2)^{2}=4k^{2}n^{2}-8kn+4[/latex] [latex](2mx+4x)^{2}=4m^{2}x^{2}+16mx^{2}+16x^2=4x^{2}(m^2+4m+4)[/latex]

[latex](2kn-2)^2=4k^2n^2-8kn+4[/latex] [latex](2mx+4x)^2= 4m^2x^2+16mx^2+16x^2=4x^2(m^2+4m+4)[/latex]