(x/2_2/5)(2/5 _x/2)_x^2+ 2x
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Step-by-step explanation:
(x/2-2/5) (2/5-x-2) -x^2+2x
(5x-4/10) (4-5x/10) -x^2+2x
(5x-4) (4-5x)/100-x^2+2x
20x-25x^2-16+20x/100-x^2+2x
40x-25x^2-16-100x^2+200x/100
240x-125x^2-16/100
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