book Maths Puzzle Numerical Ability

How do I solve this equation using the quadratic formula

3-4/x-2/x2=0

THREE - FOUR OVER X - TWO OVER X SQUARED = ZERO

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book Other Question

Hi! If you could can you help me on this problem?
Elena has one and a half times as much money as Ramon. Together they have $225. How much does each have?
Thanks. x+4/2= 2x-3/3