Question
Sun January 27, 2013 By:

Please explain me the second last step of your question 5 in question bank.

Expert Reply
Mon January 28, 2013
In the second last step, we have just simplified the numerator.
Numerator = (2x + 3)(3x+2) + 2h (3x +2) - (2x + 3)(3x + 2) - 3h(2x + 3) 
                = 2h (3x +2) - 3h(2x + 3)
                = h (6x +4 - 6x - 9)
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