Find the value of x if 3^(x + 3) – 3^x = 234.

A1

B2

C3

D4

Explanation

Factor out 3^x: 3^x (3^3 – 1) = 234 => 3^x (27 – 1) = 234 => 26 * 3^x = 234 => 3^x = 9 = 3^2 => x = 2.

Exam Relevance

Topic: Algebra
Subtopic: Exponents

Submitted by: mcqstutor Team More Mathematics MCQs →