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The roots of the equations 2x + 3√x = 2 can be found by solving A) 4x2 – 25x -4 = 0 B) 4x2 – 17x + 4 = 0 C) 4x2 – 25x + 4 = 0 D) 4x2 – 17x -4 = 0 |
Answer» Correct option is (B) 4x2 – 17x + 4 = 0 \(2x-3\sqrt{x}=2\) \(\Rightarrow2x-2=3\sqrt x\) \(\Rightarrow(2x-2)^2=9x\) (By squaring both sides) \(\Rightarrow4x^2-8x+4=9x\) \(\Rightarrow4x^2-17x+4=0\) The roots of the given equation can be found by solving the equation \(4x^2-17x+4=0.\) Correct option is B) 4x2 – 17x + 4 = 0 |
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