\(\sqrt{3x^2}-\left(1-\sqrt{3}\right)x-1=0\)
\(\Leftrightarrow\sqrt{3}x-x-\sqrt{3}x-1=0\)
\(\Leftrightarrow-x-1=0\)
\(\Leftrightarrow-x=1\)
\(\Leftrightarrow x=-1\)
Áp dụng nội suy niu tơn để giải pt sau
\(\frac{2\left(x-\sqrt{2}\right)\left(x-\sqrt{3}\right)}{\left(1-\sqrt{2}\right)\left(1-\sqrt{3}\right)}+\frac{3\left(x-1\right)\left(x-\sqrt{3}\right)}{\left(\sqrt{2}-1\right)\left(\sqrt{2}-\sqrt{3}\right)}+\frac{4\left(x-1\right)\left(x-\sqrt{2}\right)}{\left(\sqrt{3}-1\right)\left(\sqrt{3}-\sqrt{2}\right)}=3x-1\)
Giải pt sau
\(x\left(3-\sqrt{3x-1}\right)=\sqrt{3x^2+2x-1}-x\sqrt{x+1}+1\)
Giải pt sau
\(\sqrt[3]{\left(3x+1\right)^2}+\sqrt[3]{\left(3x-1\right)^2}+\sqrt[3]{9x^2-1}=1\)
giải pt: \(\sqrt{3x^2-5x+1}-\sqrt{x^2-2}=\sqrt{3\left(x^2-x-1\right)}-\sqrt{x^2-3x+4}\)
giải pt
\(\frac{2\left(x-\sqrt{2}\right)\left(x-\sqrt{3}\right)}{\left(1-\sqrt{2}\right)\left(1-\sqrt{3}\right)}+\frac{3\left(x-1\right)\left(x-\sqrt{3}\right)}{\left(\sqrt{2}-1\right)\left(\sqrt{2}-\sqrt{3}\right)}+\frac{4\left(x-1\right)\left(x-\sqrt{2}\right)}{\left(\sqrt{3}-1\right)\left(\sqrt{3}-2\right)}\)=3x-1
giải phương trình sau:
a) \(4x^2+\left(8x-4\right).\sqrt{x}-1=3x+2\sqrt{2x^2+5x-3}\)
b) \(8x^3-36x^2+\left(1-3x\right)\sqrt{3x-2}-3\sqrt{3x-2}+63x-32=0\)
c) \(2\sqrt[3]{3x-2}-3\sqrt{6-5x}+16=0\)
d) \(\sqrt[3]{x+6}-2\sqrt{x-1}=4-x^2\)
Giúp e giải pt:
2x-3+\(\frac{3x-1}{\sqrt{3-2x^2}+2-x}=0\)
\(^{x^2+4x+1=\left(x+4\right)\sqrt{x^2+1}}\)
\(2\left(x-2\right)\sqrt{x-1}=3x^2+5x-4-4x\sqrt{2x-1}\)
giải pt ( đặt ẩn phụ)
1. \(x^2+\sqrt{x+2012}=2012\)
2.\(4\cdot\sqrt{\frac{3x+1}{x-1}}+\sqrt{\frac{x-1}{3x+1}}=4\)
3. \(\left(x-3\right)\cdot\left(x+1\right)+4\cdot\left(x-3\right)\cdot\sqrt{\frac{x+1}{x-3}}+3=0\)
Giải PT: \(\sqrt{x-1}+\sqrt{x+3}+2\sqrt{\left(x-1\right)\left(x^2-3x+5\right)}=4-2x\)
