Gpt :
1) \(\sqrt{x-1}+\sqrt{4x-4}-\sqrt{25x-25}+2=0\)
2) \(\sqrt{16x+16}-\sqrt{9x+9}+\sqrt{4x+s}+\sqrt{x+1}=16\)
3)\(\sqrt{4x+20}+\sqrt{x+5}-\frac{1}{3}\sqrt{9x+45}=4\)
4) \(\frac{1}{3}\sqrt{2x}-\sqrt{8x}+\sqrt{18x}-10=2\)
Tìm x biết
a) \(\dfrac{5}{3}\sqrt{15x}-\sqrt{15x}-2=\dfrac{1}{3}\sqrt{15x}\)
b) \(\sqrt{16x+16}-\sqrt{9x+9}+\sqrt{4x+4}+\sqrt{x+1}=16\)
c ) \(\sqrt{4x+20}-3\sqrt{5+x}+\dfrac{4}{3}\sqrt{9x+45}=6\)
d) \(\sqrt{25x-25}-\dfrac{15}{2}\sqrt{\dfrac{x-1}{9}}=6+\sqrt{x+1}\)
e ) \(\sqrt{4x^2+4x+1}=1\)
1. Thu gọn : \(\sqrt{33-8\sqrt{7}}\)
2. Tìm x: \(\sqrt{4x}-3\sqrt{x}+2\sqrt{15x}=18\)
3. Rút gọn: B=\(\dfrac{1}{\sqrt{11-2\sqrt{30}}}-\dfrac{3}{7-2\sqrt{10}}\). Giúp mình với nha, mình đang cần rất gấp, gấp lắm luôn, cảm ơn
GPT : \(x^2+1+4x=\left(x+4\right)\sqrt{x^2+1}\)
GPt \(2x^2-4x-\sqrt{x\left(x-1\right)}=3\)
GPT:
4x2+12x=9+7x\(\sqrt{ }\)4x-3
Cái sau là căn của 4x-3 nha
1) GHPT \(\left\{{}\begin{matrix}\sqrt{x+1}+\sqrt{2-y}=\sqrt{3}\\\sqrt{2-x}+\sqrt{y+1}=\sqrt{3}\end{matrix}\right.\)
2) GPT \(7x^2+7x=\sqrt{\dfrac{4x+9}{28}}\)
3) tìm số dương x,y,z thỏa \(x+y+z=\sqrt{xy}+\sqrt{yz}+\sqrt{zx}=2016\)
GPT :a) \(13x-2\sqrt{x}\left(2y+3\right)+y^2+1=0\)
b) \(x+y+z=\dfrac{1}{2}\left(\sqrt{4x-1}+\sqrt{4y-1}+\sqrt{4z-1}\right)\)
Giải phương trình:
a)\(\sqrt{4x-20}-3\sqrt{\dfrac{x-5}{9}}=\sqrt{1-x}\)
b)\(\sqrt{4x+8}+2\sqrt{x+2}-\sqrt{9x+18}=1\)
c)\(\sqrt{\sqrt{5}-\sqrt{3x}}=\sqrt{8+2\sqrt{15}}\)
d)\(\sqrt{\left(\sqrt{x}-7\right)\left(\sqrt{x}+7\right)}=2\)
