a) -2x×8x-2x×(-3y)
-16x2+6xy
b) -3y×(-3x)-3y×(-8y)
9xy+24y2
c)-3y5×(-2y)-3y5×7x2
6y6-21x2y5
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a) -2x×8x-2x×(-3y)
-16x2+6xy
b) -3y×(-3x)-3y×(-8y)
9xy+24y2
c)-3y5×(-2y)-3y5×7x2
6y6-21x2y5