Giải PT: $(3x-1)\sqrt{3x-1}-4x^3+9x^2-7x=0$
giải pt \(\sqrt{3x^2-5x+1}-\sqrt{x^2-2}=\sqrt{3x^2-3x+3}-\sqrt{x^2-3x+4}\)
\(x^3-3x^2+2\sqrt{\left(x+3\right)}^3-9x=0\)
Giải PT: \(\sqrt[3]{x^2-x-1}+x^2-2=\sqrt[3]{2x-3}+3x\)
Giải pt :
a) \(x^2+3x\sqrt[3]{3x+3}-12+\frac{1}{\sqrt{x}}=\frac{\sqrt{x}+8}{x}\)
b) \(\sqrt{\left(x-1\right)\left(3-x\right)}+\sqrt{x+2}=\sqrt{x-1}+\sqrt{3-x}+\frac{x}{2}\)
giải pt
a) 2\(\sqrt[3]{x^2-4x-4}\) - 2\(\sqrt{x-1}\) +x+4 = 0
b) 2x3 + 3x2 - 17x - 26 = 2\(\sqrt{x+1}\)
Giải PT: \(\sqrt{3x-2}-\sqrt{x+1}=2x^2-x-3\)
giải pt :
a) x3+1 = 2\(\sqrt[3]{2x-1}\)
b) x2-3x+1 = \(\frac{-\sqrt{3}}{3}\sqrt{x^4+4x^2+1}\)
Giải PT: \(2\sqrt{3x+4}+3\sqrt{5x+9}=x^2+6x+13\)