exam Maths Puzzle Numerical Ability

Perform the indicated operation. 3rs(5r^2s-4rs+6rs^2)

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exam Other Question

[(8+5)(6-2)^2]-(4*17/2)
----------------------- <-- divided by
[(24/3)/3}

thanks you ps im not goin to reply back sayin thank you because i alrady did ;]
The coordinates of point x are (6,2). If point x is one corner of a square, name 3 other corners.