Giải phương trình
\(\frac{200}{x}-\frac{200}{x+10}=1\)
Giải pt; \(\frac{x-2015}{2010}+\frac{x+2007}{2012}=\frac{x+200}{2011}+\frac{x-2018}{2013}\)
Tìm x :
h/ \(\sqrt{x+5}-10=-4\)
i/ \(\sqrt{x-5}+2\sqrt{4x-20}-\frac{1}{3}\sqrt{9x-45}=12\)
j/ \(3\sqrt{2x}+\frac{1}{7}\sqrt{98x}-\sqrt{72x}+4=0\)
k/ \(\sqrt{4x^2-20}-\frac{1}{3}\sqrt{x^2-5}+\sqrt{\frac{9x^2-45}{16}}-\frac{1}{2}\sqrt{\frac{25x^2-125}{36}}=4\)
l/ \(\sqrt{4x+4}+\sqrt{9x+9}-\sqrt{x+1}=4\)
m/ \(\sqrt{16\left(x+1\right)}+\sqrt{4x+4}=16-\sqrt{x+1}+\sqrt{9x+9}\)
Giúp mk với nhé mn
P = 1 - \(\left(\frac{2}{\sqrt{x}+2}-\frac{5\sqrt{x}}{4x-1}+\frac{1}{1-2\sqrt{x}}\right):\frac{\sqrt{x}-1}{4x+4\sqrt{x}+1}\)
rút gọn P
Cho biểu thức M=\(\frac{x^4+2}{x^6+1}+\frac{x^2-1}{x^4-x^2+1}-\frac{x^2+3}{x^4+4x^2+3}\)
Rút gọn M
\(\frac{x^2-3x+5}{x^2-4x+5}-\frac{x^2-5x+5}{x^2-6x+5}=-\frac{1}{4}\)
\(\frac{4}{4x^2-8x+7}+\frac{3}{4x^2-10x+7}=\frac{1}{x}\)
\(\left(\frac{x}{\sqrt{x}-2}-\frac{4x-4\sqrt{x}}{x-2\sqrt{x}}\right)\cdot\frac{6}{\left(\sqrt{x}-2\right)^2}\)
Giải hệ phương trình sau \(\left\{{}\begin{matrix}\frac{4x}{x+1}+\frac{x}{y}=4\\\frac{2}{x+1}+\frac{4}{x}=\frac{3}{y}\end{matrix}\right.\)