Show that \(\frac{4+\sqrt{8}}{\sqrt{2}-1}\)can be written in the form \(a+b\sqrt{2}\), where \(a\) a

Show that \(\frac{4+\sqrt{8}}{\sqrt{2}-1}\)can be written in the form \(a+b\sqrt{2}\), where \(a\) a - চর্চা