Find x, if 32x+2 + 32x-2 = 738.
Explanation:
Given, 32x+2 + 32x-2 = 738
⇒ 9×32x + 32x9 = 738
⇒ 32x9+19 = 738
⇒ 32x×829 = 738
⇒ 32x = 738 × 982
⇒ 32x = 9 × 9 = 81
⇒ 32x = 34
⇒ 2x = 4
⇒ x = 2
Hence, 2.
» Your doubt will be displayed only after approval.
Help us build a Free and Comprehensive Preparation portal for various competitive exams by providing us your valuable feedback about Apti4All and how it can be improved.