题目(1)(1)(1)计算:6×3−8+10÷5\sqrt{6}×\sqrt{3}-\sqrt{8}+\sqrt{10}÷\sqrt{5}6×3−8+10÷5.(2)(2)(2)解方程:x2−4x=2x−8x^{2}-4x=2x-8x2−4x=2x−8.知识点:实数的运算、分式的化简求值章节:未标注