exam Maths Puzzle Numerical Ability

solve for x using the quadratic formula x2+8x-5=0

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exam Other Question

How do you Divide this rational expression: x^2-9/4x+12(Divided by)x-3/6? I dont understannd this at all. Whats the answer? . Multiply:
(√[6] + 2√[2])(4√[6] - 3√[2])