đặt 2 cái căn là a,b,, sau đó đưa về hpt
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đặt 2 cái căn là a,b,, sau đó đưa về hpt
GPT :
\(\sqrt[4]{2x^3+x^2-2x+8}+\sqrt[4]{3x^3+x^2-2x+10}=2\sqrt[4]{x^2-2x+4}\)
GPT : \(\sqrt{x^2+8}+2=3x+\sqrt{x^2+3}\)
Gpt: \(5\sqrt{x-1}-\sqrt{x+7}=3x-4\) (2 cách)
GPT:\(\sqrt{x^2+8}+3x-2=\sqrt{x^2+15}\)
GPT :
\(3\sqrt{x^3+8}=2x^2-3x+10\)
Gpt:
\(\sqrt{-x^2+4x+12}-\sqrt{-x^2+2x+3}=\sqrt{3}-x^2\)\(\sqrt{-4x^4y^2+16x^2y+9}-\sqrt{x^2y^2-2y^2}=2\left(x^2+\frac{1}{x^2}\right)\)\(\sqrt{-x^2+3x+4}+\sqrt{-y^2+2y+2}=\sqrt{-x^2+5x+14}\)\(\sqrt{x^2+8}-\sqrt{x^2+3}=\frac{1}{2}\left(3x-1\right)\)GPT: \(\sqrt{3x+1}-\sqrt{6-x}+3x^2-14x-8=0\)
gpt:
\(\sqrt{3x^2-6x+19}+\sqrt{x^2-2x+26}=8-x^2+2x\)
gpt:
\(x^2-3x+1=-\frac{\sqrt{3}}{3}\sqrt{x^4+x^2+1}\)