exam Maths Puzzle Numerical Ability

how do I solve this rational expresion? x^2 + 2x+1 / x+1

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exam Other Question

Run an Analysis of Variance on the following and conclude if there is a statistical difference between the 3 groups.
A___B___C
13__10__14
16__12__14
14__11__15
16__12__14
32-3p=20