The equation 3^ 2x+2 ^2x +3^ 1- 2x+2 ^2x =28 is satisfied for the values of x given by

JEE Main Mathematics question

Not in JEE Main syllabus

The equation is satisfied for the values of given by

Answer: (A)

Let and ; note . So the equation is ; with : , giving or , i.e. or .

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Question ID VK-008606