Question

show that 1 by 1 + root 2 + 1 by root 2 + root 3= -1+root 3​

Answer 1

$\begin{array}{|c @{ \: } c @{ \: } c|}\cline{1-3}& 2 & 4 \\\times & 3 & 4 \\\cline{1-3} & 9 & 6 \\7 & 2 & \\\cline{1-3} 8 &1 & 6 \\\end{array}$