exam Maths Puzzle Numerical Ability

Currently, Person A has $60 and Person B has $135. Person A decides to save $5 of his/her paycheck each week, while Person B decides to spend all of his/her paycheck and an additio

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exam Other Question

If n is an odd integer, which is the following is the square of the next larger odd integer?

The answer is n^2+4n+4

can you explain how you get that?

thank you USe slopes to show that the square with vertices at (-2,5), (4,5), (4,-1) and
(-2,-1) has diagonals that are perpendicular