1.化简
(1)√8+√32-√2 =2√2+4√2-√2 =5√2
(2)(2+√3)(2-√3)=4-3=1
(3)(3√3-2)² =3√3-2
(4)√50+√1/2-√72=5√2+1/2√2-6√2=-1/2√2
(4)√(-2/3)² =2/3
(6)(√2)²=2
(7)-√144 =-12 (8)√625=25
1.化简
(1)√8+√32-√2 =2√2+4√2-√2 =5√2
(2)(2+√3)(2-√3)=4-3=1
(3)(3√3-2)² =3√3-2
(4)√50+√1/2-√72=5√2+1/2√2-6√2=-1/2√2
(4)√(-2/3)² =2/3
(6)(√2)²=2
(7)-√144 =-12 (8)√625=25