mtable2.tex

\begin{array}{lll}
1 & {x}+{y} & {{x}}^{2}+2{y}{x}+{{y}}^{2} \\
{x}+{y} & {{x}}^{2}+2{y}{x}+{{y}}^{2} & {{x}}^{3}+3{y}{{x}}^{2}+3{{y}}^{2}{x}+{{y}}^{3} \\
{{x}}^{2}+2{y}{x}+{{y}}^{2} & {{x}}^{3}+3{y}{{x}}^{2}+3{{y}}^{2}{x}+{{y}}^{3} & {{x}}^{4}+4{y}{{x}}^{3}+6{{y}}^{2}{{x}}^{2}+4{{y}}^{3}{x}+{{y}}^{4} \\
{{x}}^{3}+3{y}{{x}}^{2}+3{{y}}^{2}{x}+{{y}}^{3} & {{x}}^{4}+4{y}{{x}}^{3}+6{{y}}^{2}{{x}}^{2}+4{{y}}^{3}{x}+{{y}}^{4} & {{x}}^{5}+5{y}{{x}}^{4}+10{{y}}^{2}{{x}}^{3}+10{{y}}^{3}{{x}}^{2}+5{{y}}^{4}{x}+{{y}}^{5} \\
\end{array}