题目计算:(1)(3+2)(3−2)+(5−1)2(1)(\sqrt{3}+\sqrt{2})(\sqrt{3}-\sqrt{2})+{(\sqrt{5}-1)}^{2}(1)(3+2)(3−2)+(5−1)2.(2)x2+2x−8=0(2)x^{2}+2x-8=0(2)x2+2x−8=0.知识点：二次根式的加减法章节：数与式 / 二次根式
