Giải các pt sau:
1, \(\sqrt{x^2+x+1}=2x+\sqrt{x^2-x+1}\)
2, \(2x^2+2x+6=2x\sqrt{x^2-x+1}+4\sqrt{3x+1}\)
3, \(\left(\sqrt{x+3}-\sqrt{x}\right)\left(1+\sqrt{x^2+3x}\right)=3\)
4, \(\sqrt{2x^2-1}+\sqrt{x^2-3x-2}=\sqrt{2x^2-2x+3}+\sqrt{x^2-x+2}\)
5, \(13\sqrt{x-1}+9\sqrt{x+1}=16x\)
Giải các phương trình vô tỉ (Phương trình có chứa căn thức)
1) \(\sqrt{x^2-20x+100}=10\)
2) \(\sqrt{x+2\sqrt{x}+1}=6\)
3) \(\sqrt{x^2-6x+9}=\sqrt{4+2\sqrt{3}}\)
4) \(\sqrt{3x+2\sqrt{3x}+1}=5\)
5) \(\sqrt{x^2+2x\sqrt{3}+3}=\sqrt{4-2\sqrt{3}}\)
6) \(\sqrt{6x+4\sqrt{6x}+4}=7\)
7) \(\sqrt{2x^2-2x\sqrt{6}+3}-\sqrt{5-\sqrt{24}}=0\)
8) \(\sqrt{3-2\sqrt{2}}-\sqrt{x^2-2x\sqrt{2}+2}=0\)
9) \(\sqrt{11-\sqrt{120}}=\sqrt{5x^2+x\sqrt{120}+6}\)
Giải phương trình
a, \(\sqrt{x^2-x+9}=2x+1\)
b. \(\sqrt{5x+7}-\sqrt{x+3}=\sqrt{3x+1}\)
c. \(x^2-3x-10+3\sqrt{x.\left(x-3\right)}=0\)
d. \(\sqrt{2-x}+\sqrt{4-x}=x^2-6x+11\)
e. \(x+6\sqrt{x+8}+4\sqrt{6-2x}=27\)
giải các pt
1, \(\sqrt{2x^2+8x+6}+\sqrt{x^2-1}=2x+2\)
2, \(\sqrt{x+2\sqrt{x-1}}-\sqrt{x-2\sqrt{x-1}}=2\)
3, \(\sqrt{x^2+x+4}+\sqrt{x^2+x+1}=\sqrt{2x^2+2x+9}\)
4, \(2x^2+\sqrt{x^2-4x+12}=4x+8\)
5, \(\sqrt{x+3-4\sqrt{x-1}}+\sqrt{x+8-6\sqrt{x-1}}=1\)
Giải phương trình:
a) \(\sqrt{x^2-6x+9}+x=11\)
b) \(\sqrt{3x^2-4x+3}=1-2x\)
c) \(\sqrt{x-3}-2\sqrt{x^2-9}=0\)
d) \(\sqrt{4x^2-4x+1}=\sqrt{x^2-6x+9}\)
e) \(\sqrt{x+4\sqrt{x-4}}=2\)
Bài 1: Giải PT
a) \(\sqrt{x^2-1}-x^2+1=0\)
b) \(\sqrt{x^2-4}-x+2=0\)
c) \(\sqrt{x^4-8x^2+16}=2-x\)
d) \(\sqrt{9x^2+6x+1}\sqrt{11-6\sqrt{2}}\)
e) \(\sqrt{4^2-9}=2\sqrt{2x+3}\)
f) \(\sqrt{4x-20}+3\sqrt{\dfrac{x-5}{9}}-\dfrac{1}{3}\sqrt{9x-45}=4\)
Giải phương trình:
a, \(\sqrt{2x^2-9x+4}+3\sqrt{2x-1}=\sqrt{2x^2+21x-11}\)
b, \(\sqrt{1-x}+\sqrt{x^2-3x+2}+\left(x-2\right)\sqrt{\frac{x-1}{x-2}=3}\)
Giải phương trình
1) \(3x^2+6x-\frac{4}{3}=\sqrt{\frac{x+7}{3}}\)
2) \(9x^2-x-4=2\sqrt{x+3}\)
3) \(x^2+\sqrt{x+5}=5\)
4) \(2x^2+2x+1=\left(4x-1\right).\sqrt{x^2+1}\)
5) \(x\sqrt{x^2-x+1}+2\sqrt{3x+1}=x^2+x+3\)
giải pt sau:
1, \(\dfrac{x}{x+3}\)+\(\dfrac{2}{x-1}\)=\(\dfrac{12}{x^2+2x-3}\)
2, \(\sqrt{x^2+3x+12}\)= x2 +3x
3, \(\sqrt{5x^2}-6x-4\)= 2(x-1)
4, x2 +6 = 4 \(\sqrt{x^3-2x^2+3}\)
5, \(\sqrt{\left(2x+1\right)\left(x^2+3\right)}\)= 2x2 -2x -7
mọi người giúp mk nha cảm ơn mn nhiều <3