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

giải pt :

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

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

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

giải pt :

a, \(\left(2x-6\right)\sqrt{x+4}-\left(x-5\right)\sqrt{2x+3}=3\left(x-1\right)\)

b, \(\left(4x+1\right)\sqrt{x+2}-\left(4x-1\right)\sqrt{x-2}=21\)

c, \(\left(4x+2\right)\sqrt{x+1}-\left(4x-2\right)\sqrt{x-1}=9\)

d, \(\left(2x-4\right)\sqrt{3x-2}+\sqrt{x+3}=5x-7+\sqrt{3x^2+7x-6}\)

giải pt :a,\(\left(2x+6\right)\sqrt{x+4}-\left(x-5\right)\sqrt{2x+3}=3\left(x-1\right)\)

            b, \(\left(4x+1\right)\sqrt{x+2}-\left(4x-1\right)\sqrt{x-2}=21\)

             c, \(\left(4x+2\right)\sqrt{x+1}-\left(4x-2\right)\sqrt{x-1}=9\)

              d, \(\left(2x-4\right)\sqrt{3x-2}+\sqrt{x+3}=5x-7+\sqrt{3x^2+7x-6}\)

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

a. \(\sqrt{\left(2x+3\right)^2}=x+1\)

b. \(\sqrt{\left(2x-1\right)^2}=x+1\)

c. \(\sqrt{x+3}=5\)

d. \(\sqrt{x+2}=\sqrt{7}\) 

e. \(5\sqrt{x}=20\) 

f. \(\sqrt{x+4}=7\) 

g. \(\sqrt{\left(2x+1\right)^2}=3\)

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