Wedge product/R^3/Simplify/1/Exercise

Simplify in ${}\bigwedge ^{2}\mathbb {R} ^{3}$ the expression

$e_{1}\wedge (e_{2}-4e_{3})-e_{2}\wedge (5e_{1}+3e_{2}-4e_{3})+{\left(7e_{3}\right)}\wedge e_{1}-4{\left(5e_{1}\wedge 2e_{3}\right)}+(2e_{1}-8e_{2})\wedge (2e_{1}-8e_{2}).$

Create a solution