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b) 6x3, x3, -x3
c) 8x2y, -6x2y
d) 2/3 xy2, 7y2x, 2/7 xy2, 4/5 y2x
W a i d wszystkie są podobne.
b)x3 i -x3, 6x3 i 6x2
c) 8x2y i x3y,
d) 2/3 xy2 i 2/7 xy2 , 7y2x i 4/5 y2x