Latest exam Aptitude Question SOLUTION: How can I answer this question. Kindly help me. 3: Which expression is the LCD for 3x-1/ 2^2.3.x^2(x+2) and 2x+7/ 2.3^2.x(x+2)^2 1. 2•3•x(x + 2) 2. 36x(x + 2) 3