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

问题描述:

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

1)√8+√32-√2
=2√2+4√2-√2
=5√2
(2)(2+√3)(2-√3)
=4-3
=1
(3)(3√3-2)²
=27+4-12√3
=31-12√3
(4)√50+√1/2-√72
=5√2-√2/2-6√2
=-3√2/2
(4)√(-2/3)²
=2/3
(6)(√2)²
=2
(7)-√144
= -12
(8)√625
=25

(1)5√2
(2)1
(3)31-12√3
(4)-√2/2
(5)2/3
(6)2
(7)-12
(8)25

1)=)2√2+4√2-√2=5√2
2)=4-3=1
3)=27-12√2+4=31-12√2
4)=5√2+0.5√2-6√2=-0.5√2
5)=2/3
6)=2
7)=-12
8)=25

1. 5√2
2. 1
3. 31-12√3
4. -1/2*√2
5. 2/3
6. 2
7. -12
8. 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