1.

If 32a + 1 × 81a – 2 = 34a + 1, then find the value of a.1. 22. 43. 34. 0

Answer» Correct Answer - Option 2 : 4

Given:

32a + 1 × 81a – 2 = 34a + 1

Concept:

Ax × Ay = Ax + y

If Bp = Bq, then p = q

Calculation:

32a + 1 × 81a – 2 = 34a + 1

⇒ 32a + 1 × 34(a – 2) = 34a + 1

⇒ 3(2a + 1) + (4a – 8) = 34a + 1

⇒ 36a – 7 = 34a + 1

Now, Bp = Bq

⇒ 6a – 7 = 4a + 1

⇒ 2a = 8

⇒ a = 4

The value of a is 4.



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