Solution: Substitute $ x = 8 $: $ S = \frac6\sqrt8 = \frac62\sqrt2 = \frac3\sqrt2 $. Rationalize: $ \frac3\sqrt22 $. Final answer: $ \boxed\dfrac3\sqrt22 $. - AMAZONAWS 📅 March 6, 2026 👤 scraface Mar 06, 2026