book Maths Puzzle Numerical Ability

Please help me to simplify this problem:
(7/2)^2
Thanks!

Read Solution (Total 0)

book Other Question

This is a tough one.

3y^2+4xy-9x^2=-1

A. Solve for X in terms of Y B. Solve for Y in terms of X The lengh of a rectangle is represented by (x-6) and the width of the rectangle is represented by (x+2). Express the area of this rectangle as a binomial in terms of x.