题目计算:(1)(3+2)2−(5−2)(5+2)(1)(\sqrt{3}+\sqrt{2})^{2}-(\sqrt{5}-2)(\sqrt{5}+2)(1)(3+2)2−(5−2)(5+2)；(2)(6−215)×3−612(2)(\sqrt{6}-2\sqrt{15})×\sqrt{3}-6\sqrt{\frac{1}{2}}(2)(6−215)×3−621；(3)23−4216+4213(3)\sqrt{\frac{2}{3}}-4\sqrt{216}+42\sqrt{\frac{1}{3}}(3)32−4216+4231.知识点：二次根式的混合运算章节：数与式 / 二次根式
