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Question
Solve : 4x - 2 - 2x + 1 = 0
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Solution
4x - 2 - 2x + 1 = 0
⇒ 4x - 2 = 2x + 1
⇒ (22)x - 2 = 2x + 1
⇒ 22x - 4 = 2x + 1
We know that if bases are equal, the powers are equal
⇒ 2x - 4 = x + 1
⇒ 2x - x = 4 + 1
⇒ x = 5.
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