book Maths Puzzle Numerical Ability

(x^3-8)/(x+2)

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book Other Question

solve for x: 3x^2-6x+2=0
If you use the Quadratic Formula I believe the answer comes out to be 1 plus or minus the square root of 3. is this correct? I need help with a question, Find the value of y in the equation

3
---- =8
y-2

I think the answer is y= 1 5/8

Am I right, Can someone please let me know?