Chương I - Căn bậc hai. Căn bậc ba
Các câu hỏi tương tự
giai phuong trinh \(x^2+\sqrt{2-x}=2x^2\sqrt{2-x}\)
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) \(\left\{{}\begin{matrix}x^2+y^2=11\\x+xy+y=3+4\sqrt{2}\end{matrix}\right.\)
Tính: \(\sqrt{x+2+3\sqrt{2x-5}}+\sqrt{x-2-\sqrt{2x-5}}=2\sqrt{2}\)
Giải phương trình:
1, x^2sqrt{x}+left(x-5right)^2sqrt{5-x}11left(sqrt{x}+sqrt{5-x}right)
2, 2x+1+xsqrt{x^2+2}+left(x+1right)sqrt{x^2+2x+3}0
3, sqrt{x+2-3sqrt{2x-5}}+sqrt{x-2+sqrt{2x-5}}2sqrt{2}
4, sqrt{x^2-dfrac{1}{4x}}+sqrt{x-dfrac{1}{4x}}x
5, sqrt{5x^2+14x+9}-sqrt{x^2-1-20}5sqrt{x+1}
Đọc tiếp
Giải phương trình:
1, \(x^2\sqrt{x}+\left(x-5\right)^2\sqrt{5-x}=11\left(\sqrt{x}+\sqrt{5-x}\right)\)
2, \(2x+1+x\sqrt{x^2+2}+\left(x+1\right)\sqrt{x^2+2x+3}=0\)
3, \(\sqrt{x+2-3\sqrt{2x-5}}+\sqrt{x-2+\sqrt{2x-5}}=2\sqrt{2}\)
4, \(\sqrt{x^2-\dfrac{1}{4x}}+\sqrt{x-\dfrac{1}{4x}}=x\)
5, \(\sqrt{5x^2+14x+9}-\sqrt{x^2-1-20}=5\sqrt{x+1}\)
Giải phương trình:
\(\sqrt{x-2+\sqrt{2x-5}+\sqrt{x+2+3\sqrt{2x-5}}}=7\sqrt{2}\)
Giai phuong trinh: \(\sqrt{3x+x^2+\dfrac{9}{4}}+\sqrt{x^2+3x+1}=0\)
giải pt \(\sqrt{x+2-3\sqrt{2x-5}}+\sqrt{x-2+\sqrt{2x-5}}=2\sqrt{2}\)
\(\sqrt{x-2+\sqrt{2x-5}}+\sqrt{x+2+3\sqrt{2x-5}}=7\sqrt{2}\)