Latest book Aptitude Question SOLUTION: perform indicated operations and simplify 1. (x-4)cubed 2. (x(a)-1)(x(a)+1) 3.2y(2)+6/y(2)-y times y(2)-y(3)/4-8y 4.9xy(3)/7x(2)y divided by 2x(2)y(2)/ 3x(4)