exam Maths Puzzle Numerical Ability

What is 6 square root 2 (4 square root 3 - 3 square root 8) ?

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exam Other Question

Add and simplify:

1/x-2 - 4/x^2 + 3/x+2

Multiply and simplify:

x^2-6x+8/3x+9 multiplied by x+3/x^2-4

Divide and simplify:

y2+7y +10/2y-4 divided by y^2-3y-10/y-2 If the perimeter of a rectangular swimming pool is 118 feet, find the length and width when the length is 1/3 of the width plus 7. (Use P=2L+2W) I can not seem to figure out the correct equation.