exam Maths Puzzle Numerical Ability

3X + 1 6X + 5
------ = ------
X - 4 2X - 7

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exam Other Question

Factor completely. 12x^3 – 3xy^2 I got 3x(4x – y)(x + y) Is this correct Tutor could I please get your help? My problem is: how do I simplify this expression: 3y^2+5yz+2z^2 over 2y^2+3yz+z^2

Thank you!