Question 103378
(x/2 + 2/3)(2x/3 - 2/5) 
Use FOIL:
F: (x/2)(2x/3) = 2x^2/6 = x^2/3
O: (x/2)(-2/5) = -(1/5)x
I: (2/3)(2x/3) =  (4/9)x
L: (2/3)(-2/5) = -4/15
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Combine to get:

(1/3)x^2 + [(-1/5)+(4/9)]x - 4/15

= (1/3)x^2 -(11/45)x -(4/15)

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Cheers,
Stan H.