Zredukuj wyrazy podobne :
a)12ax-x+a-10xa
b)10ab+3ab2(do kwadratu)+5ab-3ab2(do kwadratu)
c)17x+8y-20xy+3x+15x2(kwadrat)y2(kwadrat)-10xy2(kwadrat)+x-2y
d)7xy-10xy+3x2(kwadratowe)y-7x2(kwadrat)y+4xy
e)17a2(kwadrat)b +15ab2(kwadrat)-11ab2(kwadrat)+13a2(kwadrat)b-ab2(kwadrat)
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a)12ax-x+a-10xa=2ax-x+a
b)10ab+3ab²+5ab-3ab²=15ab
c)17x+8y-20xy+3x+15x²y²-10xy²+x-2y=15x²y²-10xy²-20xy+21x+6y
d)7xy-10xy+3x²y-7x²y+4xy=-4x²y+xy
e)17a²b +15ab²-11ab²+13a²b-ab²= 30a²b+3ab²