Przepisz podane wyrażenia i zredukuj je.
np.
a) -2+3xy-2-xy+2xy=4xy -4
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b)2g+3gk+2g-5gk-3g=
c)mn+m+n-mn+n+m=
d)2x+3y-2xy+4x+5y=
e)2ab-3ac+4bc+4ab-5ac-2bc+9=
f)xy+4xy+-5+xy+6-4xy =
pomocy !
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a) -2+3xy-2-xy+2xy=4xy -4
b)2g+3gk+2g-5gk-3g= g-2gk
c)mn+m+n-mn+n+m= 2m +2n
d)2x+3y-2xy+4x+5y= 6x +8y -2xy
e)2ab-3ac+4bc+4ab-5ac-2bc+9= 6ab - 8ac +2bc +9
f)xy+4xy+-5+xy+6-4xy = 2xy +1