October 2018 1 10 Report
A)7xy(4x²y-12x+15y-18xy²-19x²y²-13x-12y²-19xy-18y (x=½ , y= -⅔)

B) 12a(7ab-18a²-2ab²-3b -12a²b²-18ab²+14ab- 19b²
(a=3 , b=¾)

C)7mn(8m²-12mn+10m²n²-15mn-16n²+18m² -13n²
(m=-3/5 , n=2). porfa ayudenme

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