a) - ( 2x - 4y + 5 ) + 2x =
b) (5a²+2a-1) - (2a²+4a+7)=
c) 3x ( -2a + 5x ) -2a=
d) ( 7xy - 2y ) - ( 5xy + 3y) - xy =
Dodawanie i odejmowanie sum algebricznych.. ; /
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a)-2x+4y-5+2x=4y-5
b)5a do kwadratu + 2a - 1 - 2a kwadrat - 4a + 7 =3a do kwadratu - 2a - 6
c)3x+2a-5x-2a=-2x
d)7xy-2y-5xy-3y-xy=xy-5y
mam nadzieję ze pomoglam licze na naj