J
jennyhan2001
còn mấy bài này nữa. giúp em với
1. [TEX]2\sqrt{x + 2} = x^3 - 4[/TEX]
2. [TEX]2x^2 - 11x + 21 = \sqrt[3]{4x - 4} [/TEX]
3. [TEX]\sqrt{3x^2 - 5x + 1} - \sqrt{x^2 - 2} = \sqrt{3(x^2 - x - 1)} - \sqrt{x^2 - 3x + 4}[/TEX]
4. [TEX]\sqrt{3x + 1} - \sqrt{6 - x} + 3x62 - 14x - 8 = 0[/TEX]
1. [TEX]2\sqrt{x + 2} = x^3 - 4[/TEX]
2. [TEX]2x^2 - 11x + 21 = \sqrt[3]{4x - 4} [/TEX]
3. [TEX]\sqrt{3x^2 - 5x + 1} - \sqrt{x^2 - 2} = \sqrt{3(x^2 - x - 1)} - \sqrt{x^2 - 3x + 4}[/TEX]
4. [TEX]\sqrt{3x + 1} - \sqrt{6 - x} + 3x62 - 14x - 8 = 0[/TEX]