giải pt :

a,\(2x^2-11x+21=3\sqrt[3]{4x-4}\)

b,\(\dfrac{\sqrt{x-3}}{\sqrt{2x-1}-1}=\dfrac{1}{\sqrt{x+3}-\sqrt{x-3}}\)

c,\(\left(\sqrt{x^2+x+1}+\sqrt{4x^2+x+1}\right)\left(\sqrt{5x^2+1}-\sqrt{2x^2+1}\right)=3x^2\)

giải pt :

a, \(x^2+5x+2=4\sqrt{x^3+3x^2+x-1}\)

b, \(\sqrt{x+1}+x+3=\sqrt{1-x}+3\sqrt{1-x^2}\)

c,\(\left(2x-3\right)\sqrt{3+x}+2x\sqrt{3-x}=6x-8+\sqrt{9-x^2}\)

giải pt :

a, \(\dfrac{\sqrt{x-3}}{\sqrt{2x-1}-1}=\dfrac{1}{\sqrt{x+3}-\sqrt{x-3}}\)

b, \(\left(\sqrt{x^2+x+1}+\sqrt{4x^2+x+1}\right)\left(\sqrt{5x^2+1}-\sqrt{2x^2+1}\right)=3x^2\)

Giải pt : a) \(\sqrt{3x^2-5x+1}-\sqrt{x^2-2}=\sqrt{3\left(x^2-x-1\right)}-\sqrt{x^2-3x+4}\)

b) \(\left(x-1\right)\sqrt{x^2+5}+x=x^2+1\)

c)\(\sqrt{x+2}+2x-10=\sqrt{2x-3}\)

d)\(\sqrt{2x-3}-\sqrt{x}=2x-6\)

e) \(\sqrt{4x^2+5x+1}-2\sqrt{x^2-x+1}=9x-3\)

giai cac phuong trinh

a)\(2x^4+5x^3+x^2+5x+2=0\)

b)\(\sqrt{x-1}-\sqrt[3]{2-x}=1\)

c)\(x-\sqrt{x}+1=\sqrt{2x^2-30x+2}\)

d)\(2x^2+3x+7=\left(x-5\right)\sqrt{2x^2+1}\)

e)\(\sqrt{x-2}+\sqrt{4-x}=2x^2-5x-1\)
 

giải phương trình :

a, \(\sqrt{x+1}+x+3=\sqrt{1-x}+3\sqrt{1-x^2}\)

b,\(\left(2x-3\right)\sqrt{3+x}+2x\sqrt{3-x}=6x-8+\sqrt{9-x^2}\)

c, \(2x^2-5x+22=5\sqrt{x^3-11x +20}\)

d, \(x^3-3x^2+2\sqrt{\left(x+2\right)^3}=6x\)

giải pt

a) \(\sqrt[3]{x+6}+\sqrt{x-1}=x^2-1\)

b) \(\sqrt[3]{x-9}+2x^2+3x=\sqrt{5x-1}+1\)

c) \(\sqrt{3x+1}-\sqrt{6-x}+3x^2-14x-8=0\)

d) \(\sqrt{x+1}-2\sqrt{4-x}=\frac{5\left(x-3\right)}{\sqrt{2x^2+18}}\)

e) \(x^3+5x^2+6x=\left(x+2\right)\left(\sqrt{2x+2}+\sqrt{5-x}\right)\)

giải pt :

a, \(\sqrt{x-\sqrt{x^2-1}}+\sqrt{x+\sqrt{x^2-1}}=2\)

b, \(\left(x^2+2\right)^2+4\left(x+1\right)^3+\sqrt{x^2+2x+5}=\left(2x-1\right)^2+2\)

c, \(\sqrt{4x^2+x+6}=4x-2+7\sqrt{x+1}\)

d, \(\sqrt{x-2}-\sqrt{x+2}=2\sqrt{x^2-4}-2x+2\)