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, \(\sqrt{x+3-4\sqrt{x-1}}+\sqrt{x+8-6\sqrt{x-1}}=1\)
tìm x:
\(\sqrt{x^2+x+1}=1\)
\(\sqrt{x^2+1}=-3\)
\(\sqrt{x^2-10x+25}=7-2x\)
\(\sqrt{2x+5}=5\)
\(\sqrt{x^2-4x+4}-2x+5=0\)
\(\sqrt{\dfrac{x+2}{4}}+\sqrt{25x+50}-2\sqrt{x+2}=14\) ; \(\sqrt{2x+3}=x\) ; \(\sqrt{25x^2+20x+4}=1\) ; \(\sqrt{\dfrac{x+1}{2x-1}}=2\) ; \(\dfrac{\sqrt{x-2}}{\sqrt{3x+1}}=6\)
Tìm x
giải các phương trình sau:
\(\)1, \(\sqrt{10-x}+\sqrt{x+3}\)=5
2, \(\sqrt{15-x}+\sqrt{3-x}\)=6
3, \(\sqrt{4x+1}-\sqrt{3x+4}=1\)
4, \(\sqrt{x+\sqrt{2x-1}}\)+\(\sqrt{x-\sqrt{2x-1}}=\sqrt{2}\)
5, \(\sqrt{x^2-4x+4}+\sqrt{x^2-6x+9}=1\)
1, \(\sqrt{2x^2-3}=\sqrt{4x-3}\)
2, \(\sqrt{2x-1}=\sqrt{x-1}\)
3, \(\sqrt{x^2-x-6}=\sqrt{x-3}\)
4, \(\sqrt{x^2-x}=\sqrt{3x-5}\)
5, \(\sqrt{x^2+x}=x\)
6, \(\sqrt{1-x^2}x-1\)
7, \(\sqrt{x^2-4x+3}=x-2\)
8, \(\sqrt{x^2-1}-x^2+1=0\)
9, \(\sqrt{x^2-4}-x+2=0\)
10, \(\sqrt{1-2x^2}=x-1\)
Ai biết lm chỉ e vs ạ. e cảm ơn nhìu ạ.
Cho \(x=\frac{1}{2}\sqrt{\frac{\sqrt{2}-1}{\sqrt{2}+1}}\). Tính:
\(M=\left(4x^5+4x^4-x^3+1\right)^{19}+\left(\sqrt{4x^5+4x^4-5x^3+5x+3}\right)^3+\left(\frac{1-\sqrt{2}}{\sqrt{2x^2+2x}}\right)^{2016}\)
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) \(\sqrt{11-\sqrt{120}}=\sqrt{5x^2+x\sqrt{120}+6}\)
1) \(\sqrt{x-1}=\sqrt{2x+3}\)
2) \(\sqrt{2x-3}=\sqrt{x-1}\)
3) \(\sqrt{2-x}=\sqrt{3+x}\)
4) \(\sqrt{4x-8}=2\sqrt{x-2}\)
5) \(\sqrt{x^2-5}\sqrt{4x-9}\)
6) \(\sqrt{x-2}=\sqrt{x^2-2x}\)
7) \(\sqrt{x^2-3x}=\sqrt{15-5x}\)
8) \(\sqrt{4x^2-9}=\sqrt{-20-18}\)
Có điều kiện cho từng câu hộ mình nhé!!!
9) \(\sqrt{x-2}=\sqrt{x-2}\)