a) (5a+3) + (2a-2)
b) (2+4x-3) + (--2x+4)
c) (m + n + 6) + (-1/3m(2)-2/3n(2)-2 3/5)
d) (0,5xy-1,2y+5) + (-0,8y(2)-2,5xy-4 1/8)
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a) 5a+3+2a-2=7a-1
b)2x[2]+4x-3-x[2]-2x+4=x[2]+2x+1
W nawiasach kwadratowych [] są potęgi
a) 5a+3 +2a-2=7a+1
b)2xkw.+4x-3+xkw.-2x+4 =3 x kwadrat+2x=1
c)-1/15mkw.+3 2/5
d)2ykw.+7/8-2