Chương I - Căn bậc hai. Căn bậc ba
Các câu hỏi tương tự
Giai phuong trinh
\(\sqrt{x+2+3\sqrt{2x-5}}+\sqrt{x-2-2\sqrt{2x-5}}=2\sqrt{2}\)
Giai phuong trinh: \(\dfrac{2+\sqrt{x}}{\sqrt{2}+\sqrt{2+\sqrt{x}}}+\dfrac{2-\sqrt{x}}{\sqrt{2}-\sqrt{2-\sqrt{x}}}=\sqrt{2}\)
Giai phuong trinh va he phuong trinh:
a) \(\sqrt{x^2+6}=x-2\sqrt{x^2-1}\)
b) \(x^2+3x+1=\left(x+3\right).\sqrt{x^2+1}\)
c) \(\left\{{}\begin{matrix}x^2+y^2=11\\x+xy+y=3+4\sqrt{2}\end{matrix}\right.\)
Giai phuong trinh: \(\sqrt{3x+x^2+\dfrac{9}{4}}+\sqrt{x^2+3x+1}=0\)
Giai phuong trinh:
\(\sqrt[3]{x+3}-\sqrt[3]{6-x}=1\)
\(2\sqrt[3]{3x-2}+3\sqrt{6-5x}-8=0\)
Giai phuong trinh
1,thu gon bieu thuc
a Adfrac{asqrt{a}-8+2a-4sqrt{a}}{a-4}
b,Bdfrac{12sqrt{6}}{sqrt{7+2sqrt{6}-sqrt{7-2sqrt{6}}}}
c, Cdfrac{sqrt{c^2+2c+1}}{left|cright|-1}
2,giai cac phuong trinh
a,x^2-9sqrt{x}+140
b, sqrt{3x^2-18x+28}+sqrt{4x^2-24x+45}-5-x^2+6
GIUP MINH VOI MINH CAN GAP
Đọc tiếp
1,thu gon bieu thuc
a A=\(\dfrac{a\sqrt{a}-8+2a-4\sqrt{a}}{a-4}\)
b,B=\(\dfrac{12\sqrt{6}}{\sqrt{7+2\sqrt{6}-\sqrt{7-2\sqrt{6}}}}\)
c, C=\(\dfrac{\sqrt{c^2+2c+1}}{\left|c\right|-1}\)
2,giai cac phuong trinh
a,\(x^2-9\sqrt{x}+14=0\)
b, \(\sqrt{3x^2-18x+28}+\sqrt{4x^2-24x+45}=-5-x^2+6\)
GIUP MINH VOI MINH CAN GAP
Giai Phuong Trinh sau : √(x +1) + √(x +10) = √(x +2) + √(x+5)
Giai phương trình :
\(\sqrt[3]{14-x^2}+x=2\left(1+\sqrt{x^2-2x-1}\right)\)