exam Maths Puzzle Numerical Ability

Q1. (x-1)(x-2)(x^2-9x+14)/(x-7)(x^2-3x+2)

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exam Other Question

The length of a rectangle is 2cm more than 5 times its width. If the area of the rectable is 65cm^2, find the dimensions of the rectable to the nearest thousandth.
Do I use a pythagorean theorem to form an equation, I do not understand. please help When I get to Factoring 40 I can not get anything to add to get 22. How would I work the problem out?