Q
quykhuyetdanh


(I): [tex] 2(3x+1)\sqrt{2x^2-1} = 10x^2+8x-1 [/tex]
(II): [tex] \sqrt{3-x}+\sqrt{x+2} = x^3 +x^2 - 4x -1 [/tex]
(II): [tex] \sqrt{3-x}+\sqrt{x+2} = x^3 +x^2 - 4x -1 [/tex]
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