Các câu hỏi tương tự
a)\(3\sqrt{\sqrt{20}}-2\sqrt{2\sqrt{80}}+2\sqrt{6\sqrt{45}}\)
b)\(\sqrt{\sqrt{5}-\sqrt{3-\sqrt{29-6\sqrt{20}}}}\)
9) \(\sqrt{20}\) + 2\(\sqrt{45}\) + \(\sqrt{125}\) - 3\(\sqrt{80}\)
10) \(\sqrt{75}\) - \(\sqrt{5\dfrac{1}{3}}\) + \(\dfrac{9}{2}\) \(\sqrt{2\dfrac{2}{3}}\) + 2\(\sqrt{27}\)
Thực hiện phép tính (rút gọn biểu thức)
a)\(\sqrt{20}\)-3\(\sqrt{45}\)-\(\dfrac{1}{2}\sqrt{80}\)
b) 12\(\sqrt{54}\)-\(\dfrac{2}{5}\)\(\sqrt{150}\)+3\(\sqrt{24}\)
22 tháng 6 2023 lúc 16:47
Rút gọn biểu thứcI(2sqrt{3}-5sqrt{27}+4sqrt{12}):sqrt{3}Ksqrt{125}-4sqrt{45}+3sqrt{20}-sqrt{80}L2sqrt{9}+sqrt{25}-5sqrt{4}N2sqrt{32}-5sqrt{27}-4sqrt{8}+3sqrt{75}O2sqrt{3.5^2}-3sqrt{3.2^2}+sqrt{3.3^2}
Đọc tiếp
Rút gọn biểu thức
I=(2\(\sqrt{3}\)-5\(\sqrt{27}\)+4\(\sqrt{12}\)):\(\sqrt{3}\)
K=\(\sqrt{125}\)-4\(\sqrt{45}\)+3\(\sqrt{20}\)-\(\sqrt{80}\)
L=2\(\sqrt{9}\)+\(\sqrt{25}\)-5\(\sqrt{4}\)
N=2\(\sqrt{32}\)-5\(\sqrt{27}\)-4\(\sqrt{8}\)+3\(\sqrt{75}\)
O=2\(\sqrt{3.5^2}\)-3\(\sqrt{3.2^2}\)+\(\sqrt{3.3^2}\)
rút gọn
a)sqrt{20}+sqrt{80}-sqrt{45}
b)4.sqrt{dfrac{2}{9}}+sqrt{2}+sqrt{dfrac{1}{18}}
c)dfrac{1}{sqrt{3}-1}-dfrac{1}{sqrt{3}+1}
d)dfrac{1}{sqrt{x}-1}-dfrac{1}{sqrt{x}+1}+1
e)sqrt{x}-2+dfrac{10-x}{sqrt{x}+2}
g)dfrac{1}{sqrt{x}+2}-dfrac{2}{sqrt{x}-2}-dfrac{sqrt{x}}{4-x}
Đọc tiếp
rút gọn
a)\(\sqrt{20}\)+\(\sqrt{80}\)-\(\sqrt{45}\)
b)4.\(\sqrt{\dfrac{2}{9}}\)+\(\sqrt{2}\)+\(\sqrt{\dfrac{1}{18}}\)
c)\(\dfrac{1}{\sqrt{3}-1}\)-\(\dfrac{1}{\sqrt{3}+1}\)
d)\(\dfrac{1}{\sqrt{x}-1}\)-\(\dfrac{1}{\sqrt{x}+1}\)+1
e)\(\sqrt{x}\)-2+\(\dfrac{10-x}{\sqrt{x}+2}\)
g)\(\dfrac{1}{\sqrt{x}+2}\)-\(\dfrac{2}{\sqrt{x}-2}\)-\(\dfrac{\sqrt{x}}{4-x}\)
Rút gọn các biểu thức sau:
\(a,\left(\sqrt{45}+\sqrt{20}-\sqrt{80}\right):\sqrt{5}\)
\(b,\left(\sqrt{5}-\sqrt{3}\right)^2+2\sqrt{15}\)
\(1-\left(\sqrt{45}-\sqrt{20}-\sqrt{3}\right)\left(\sqrt{20}-\sqrt{45}-\sqrt{3}\right)\)
Rút gọn:
a)\(\sqrt{125}-4\sqrt{45}\)+\(3\sqrt{20}-\sqrt{80}\)
b)\(5\sqrt{a}-4b\sqrt{25a^2}\)+\(5a\sqrt{16ab^2}-2\sqrt{9a}\)(với a>0. b>0)
c)\(5a\sqrt{64ab^3}-\)\(\sqrt{3}.\sqrt{12a^3b^3}-5b\sqrt{81a^3b}\)
Rút Gọn 1.3sqrt{2}-4sqrt{18}-2sqrt{32}-sqrt{50}2,5sqrt{48}-4sqrt{27}-2sqrt{75}+sqrt{108}3,2sqrt{24}-2sqrt{54}+3sqrt{6}-sqrt{150}4,sqrt{125}-2sqrt{20}-3sqrt{80}+4sqrt{45}5,2sqrt{28}+2sqrt{63}-3sqrt{175}+sqrt{112}6,10sqrt{28}-2sqrt{275}-3sqrt{343}-frac{3}{2}sqrt{396}
Đọc tiếp
Rút Gọn
1.\(3\sqrt{2}-4\sqrt{18}-2\sqrt{32}-\sqrt{50}\)
2,\(5\sqrt{48}-4\sqrt{27}-2\sqrt{75}+\sqrt{108}\)
3,\(2\sqrt{24}-2\sqrt{54}+3\sqrt{6}-\sqrt{150}\)
4,\(\sqrt{125}-2\sqrt{20}-3\sqrt{80}+4\sqrt{45}\)
5,\(2\sqrt{28}+2\sqrt{63}-3\sqrt{175}+\sqrt{112}\)
6,\(10\sqrt{28}-2\sqrt{275}-3\sqrt{343}-\frac{3}{2}\sqrt{396}\)