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Mathematics

Solve the following equation:

log(3x + 2) + log(3x - 2) = 5log 2

Logarithms

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Answer

Given,

⇒ log(3x + 2) + log(3x - 2) = 5log 2

⇒ log(3x + 2)(3x - 2) = log 25

⇒ log(9x2 - 4) = log 32

⇒ 9x2 - 4 = 32

⇒ 9x2 = 36

⇒ x2 = 4

⇒ x = 2.

Hence, x = 2.

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