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h) 3p(2r+5p-1)=6pr+15p²-3p
i) xy(2x-3y+5)=2x²y-3xy²+5xy
h) 6pr+15p²-3p
i) 2x²y-3xy²+5xy
h) 3p(2r+5p-1)= 6pr+15p(do kwadratu)-3p
i) xy(2x-3y+5)= 2x(do kwadratu)y-3xy(do kwadratu)+5xy