wykonaj mnożenia i zredukuj wyrazy podobne
a) 3x(2+xy-3y)+7(2x²y+4y-2x)=
b) 2x(4x-3y)-3x(2x-2y-3)=
c) 5x(x-2)+(2+3x)*(razy)3=
d) -4a(2a+b-1)-(a+b)=
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a) 3x(2+xy-3y)+7(2x²y+4y-2x =
b)2x(4x-3y)-3x(2x-2y-3) =
c) 5x(x-2)+(2+3x)*(razy)3=
d) -4a(2a+b-1)-(a+b)=