Gpt: \(5\sqrt{x-1}-\sqrt{x+7}=3x-4\) (2 cách)
gpt (x+1)/(x^2+x+1) -(x-1)/(x^2-x+1)=(5-3x)/(x^6+x^4+x^2)
GPT : \(\sqrt{\left|x+1\right|}+\sqrt[4]{x^2-2x+5}=2\sqrt[4]{x^2+3}\)
GPT \(x^6-x^5+x^4-x^3+x^2-x+\frac{1}{2}=0\)
GPT :
\(\dfrac{4}{x}+\sqrt{x-\dfrac{1}{x}}=x+\sqrt{2x-\dfrac{5}{x}}\)
GPT : \(2\sqrt{\left(1-x\right)\left(x-4\right)}=\frac{5x+4}{x-5}\)
giúp mk vs : gpt :
A= \(\sqrt{x^2-2x+5}+2\sqrt{4x+5}=x^3-2x^2+5x+4\)
Gpt \(x^2-4+4\left(x-2\right)\sqrt{\dfrac{x+2}{x-2}}=-3\)
Gpt
\(2x^2+4=5\sqrt{x^3+1}\)