exam Maths Puzzle Numerical Ability

3y squard=192

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exam Other Question

Please help me with the problem below. Thank you!

sqrt7(2sqrt3+3sqrt7)

Thank you very much! i need to be shown the work to get the answer to this problem.

what is the value of this rational expression when x = 3?

x-1
_____

(x+1)(x-5)