book Maths Puzzle Numerical Ability

Simplify the Following:

X^2+2X+1/X-1 * 2X-2/X+1

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book Other Question

Please help me I need this by Monday, please!! :0)

An investment of $1500 paid interest of $45 during a certain period. How much interest would an investment of $2000 invested at the same rate for the same length of time pay? The radius of a pizza is 22cm what is its area