Các câu hỏi tương tự
1,sqrt{x-5}+sqrt{x+4}32,sqrt{x+4-4sqrt{x}}+sqrt{x+6-6sqrt{x}}13,sqrt{x+3}-sqrt{x-4}14,sqrt{15-x}+sqrt{3-x}65,sqrt{10-x}+sqrt{x+3}56,sqrt{2x-1}+sqrt{x-2}sqrt{x+1}7,sqrt{x+6-4sqrt{x+2}}+sqrt{x+11-6sqrt{x+2}}18,sqrt{x^2-5x+6}+sqrt{x-2-3sqrt{x-3}}39,2x^2-x+42sqrt{2x+3}
Đọc tiếp
1,\(\sqrt{x-5}+\sqrt{x+4}=3\)
2,\(\sqrt{x+4-4\sqrt{x}}+\sqrt{x+6-6\sqrt{x}}=1\)
3,\(\sqrt{x+3}-\sqrt{x-4}=1\)
4,\(\sqrt{15-x}+\sqrt{3-x}=6\)
5,\(\sqrt{10-x}+\sqrt{x+3}=5\)
6,\(\sqrt{2x-1}+\sqrt{x-2}=\sqrt{x+1}\)
7,\(\sqrt{x+6-4\sqrt{x+2}}+\sqrt{x+11-6\sqrt{x+2}}=1\)
8,\(\sqrt{x^2-5x+6}+\sqrt{x-2-3\sqrt{x-3}}=3\)
9,\(2x^2-x+4=2\sqrt{2x+3}\)
Phân tích thành nhân tử x+sqrt{x}x-sqrt{x}a+3sqrt{a}-10xsqrt{x}+sqrt{x}-x-1x+sqrt{x}-2x-5sqrt{x}+6xsqrt{x}-1xsqrt{x}-x+sqrt{x}-1x+2sqrt{x}-15x-2sqrt{x}-3a+sqrt{a}-6x-16x+2sqrt{x}+1x-1x-2sqrt{x}+1asqrt{a}+1a+sqrt{a}-22x-5sqrt{x}+3x-9x+sqrt{x}-6
Đọc tiếp
Phân tích thành nhân tử
\(x+\sqrt{x}\)
\(x-\sqrt{x}\)
\(a+3\sqrt{a}-10\)
\(x\sqrt{x}+\sqrt{x}-x-1\)
\(x+\sqrt{x}-2\)
\(x-5\sqrt{x}+6\)
\(x\sqrt{x}-1\)
\(x\sqrt{x}-x+\sqrt{x}-1\)
\(x+2\sqrt{x}-15\)
\(x-2\sqrt{x}-3\)
\(a+\sqrt{a}-6\)
\(x-16\)
\(x+2\sqrt{x}+1\)
\(x-1\)
\(x-2\sqrt{x}+1\)
\(a\sqrt{a}+1\)
\(a+\sqrt{a}-2\)
\(2x-5\sqrt{x}+3\)
\(x-9\)
\(x+\sqrt{x}-6\)
Tìm `ĐKXĐ`:
\(\sqrt{\dfrac{-5}{6+x}}\)
\(\sqrt{\dfrac{-2}{6-x}}\)
\(\sqrt{\dfrac{-x+3}{-6}}\)
\(\sqrt{\dfrac{7x-1}{-9}}\)
\(\sqrt{\dfrac{x+2}{x^2+2x+1}}\)
\(\sqrt{\dfrac{x-2}{x^2-2x+4}}\)
\(\dfrac{\sqrt{x}+3}{\sqrt{x}+1}\)+\(\dfrac{\sqrt{x}+2}{6-\sqrt{x}}\)+ \(\dfrac{\sqrt{x}+50}{x-5\sqrt{x}-6}\)
L2
9 tháng 6 2021 lúc 10:36
\((\dfrac{6\sqrt{x}+6}{x+2\sqrt{x}-3}-\dfrac{\sqrt{x}+2}{\sqrt{x}-1}):\dfrac{1}{\sqrt{x}+3}\)
Thu gọn biểu thức
Thu gọn
\(\left(\dfrac{6x+4\sqrt{x}}{x\sqrt{x}-4\sqrt{x}}-\dfrac{6}{3\sqrt{x}+6}+1\right):\dfrac{1}{\sqrt{x}-2}\)
L2
21 tháng 11 2021 lúc 20:20
Thu gọn P
\(P=\dfrac{x-\sqrt{x}}{x-9}+\dfrac{1}{\sqrt{x}+3}-\dfrac{1}{\sqrt{x}-3}\)
a) Tính P biết \(x=\sqrt{6+4\sqrt{2}}+\sqrt{6-4\sqrt{2}}\)
b) Tính P biết \(x=\dfrac{1}{\sqrt{2}-1}-\dfrac{1}{\sqrt{2}+1}\)
1. sqrt{x-2sqrt{x-1}}+sqrt{x+3-4sqrt{x-1}}left(2 x 5right)2. frac{6}{1-sqrt{3}}-frac{3sqrt{3}-1}{sqrt{3}+1}+sqrt{3}3. sqrt{29-12sqrt{5}+sqrt{24-8sqrt{3}}}4. sqrt{frac{4}{9-4sqrt{5}}}-sqrt{frac{4}{9+4sqrt{5}}}5. 5sqrt{frac{1}{5}}+frac{1}{2}sqrt{x}-frac{5}{4}sqrt{frac{4}{5}+sqrt{5}}6. frac{6-sqrt{6}}{sqrt{6}-1}-9sqrt{frac{2}{3}}-frac{4}{2-sqrt{6}}7. left(frac{sqrt{x}-2}{x-1}-frac{sqrt{x}+2}{x+2sqrt{x}+1}right)frac{left(sqrt{x}-1right)^2}{2}left(xge0,xne1right)
Đọc tiếp
1. \(\sqrt{x-2\sqrt{x-1}}+\sqrt{x+3-4\sqrt{x-1}}\left(2< x< 5\right)\)
2. \(\frac{6}{1-\sqrt{3}}-\frac{3\sqrt{3}-1}{\sqrt{3}+1}+\sqrt{3}\)
3. \(\sqrt{29-12\sqrt{5}+\sqrt{24-8\sqrt{3}}}\)
4. \(\sqrt{\frac{4}{9-4\sqrt{5}}}-\sqrt{\frac{4}{9+4\sqrt{5}}}\)
5. \(5\sqrt{\frac{1}{5}}+\frac{1}{2}\sqrt{x}-\frac{5}{4}\sqrt{\frac{4}{5}+\sqrt{5}}\)
6. \(\frac{6-\sqrt{6}}{\sqrt{6}-1}-9\sqrt{\frac{2}{3}}-\frac{4}{2-\sqrt{6}}\)
7. \(\left(\frac{\sqrt{x}-2}{x-1}-\frac{\sqrt{x}+2}{x+2\sqrt{x}+1}\right)\frac{\left(\sqrt{x}-1\right)^2}{2}\left(x\ge0,x\ne1\right)\)
Giải phương trình:1) 4x+2+sqrt{1-x}-sqrt{2+x}02) sqrt{x+3}+sqrt{6-x}-sqrt{left(x+3right)left(6-xright)}frac{6sqrt{2}-9}{2}3) sqrt[3]{x+frac{1}{2}}+sqrt{frac{1}{2}-x}14) x^4+sqrt{x^2+2016}20165) frac{x^2+12x+4}{x+2}6sqrt{x}6) ^{x^424x+32}7) sqrt[3]{x+1}+sqrt{x+1}sqrt[3]{x-1}
Đọc tiếp
Giải phương trình:
1) \(4x+2+\sqrt{1-x}-\sqrt{2+x}=0\)
2) \(\sqrt{x+3}+\sqrt{6-x}-\sqrt{\left(x+3\right)\left(6-x\right)}=\frac{6\sqrt{2}-9}{2}\)
3) \(\sqrt[3]{x+\frac{1}{2}}+\sqrt{\frac{1}{2}-x}=1\)
4) \(x^4+\sqrt{x^2+2016}=2016\)
5) \(\frac{x^2+12x+4}{x+2}=6\sqrt{x}\)
6) \(^{x^4=24x+32}\)
7) \(\sqrt[3]{x+1}+\sqrt{x+1}=\sqrt[3]{x-1}\)
\(a,x^2-4x-6=\sqrt{2x^2-8x+12}\)
\(b,\sqrt{x^2+2-4\sqrt{x-2}}+\sqrt{x+7-6\sqrt{x-2}}=1\)
\(c,\sqrt{x+3+4\sqrt{x-1}}+\sqrt{8-6\sqrt{x-1}+x}=1\)
\(d,\sqrt{3-x+x^2}-\sqrt{2+x-x^2}=1\)
\(e,\sqrt{4x-9}+2\sqrt{3x^2-5x+2}=\sqrt{3x-2}+\sqrt{x-1}\)