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Mathematics

Solve for x :

(a3x + 5)2.(ax)4 = a8x + 12

Indices

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Answer

Given,

⇒ (a3x + 5)2.(ax)4 = a8x + 12

⇒ a2(3x + 5).a4x = a8x + 12

⇒ a6x + 10.a4x = a8x + 12

⇒ a6x + 10 + 4x = a8x + 12

⇒ a10x + 10 = a8x + 12

⇒ 10x + 10 = 8x + 12

⇒ 10x - 8x = 12 - 10

⇒ 2x = 2

⇒ x = 22\dfrac{2}{2} = 1.

Hence, x = 1.

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