exam Maths Puzzle Numerical Ability

multiply then put in lowest terms....... i got this far now im not sure what to do?

2x+2/(x+4)(x-1) times (x+4)(x-2)/2x-4

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exam Other Question

I am not to sure how to simplify and divide rational expressions, could some one please help me with this problem.
(2x^2 + 5x - 12/ 9x^2 - 16) /(2x^2 - 7x + 6/ 3x^2 - x - 4)

Thank you in advance for your help.
can you help me graph the equation usin the slope intercept or using the intercept procedure (finding the x and y intercepts by substitutng zero)
4x+y=5
3x-2y=6
3y=5
y=2x+8