Zredukuj wyrazy podobne ;
a) 2a + 3b + (-3a) + b =
b) a (do kwadratu) + (-3b) + (-12a "do kwadratu") + (-7b) =
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a) 2a + 3b + (-3a) + b = 2a+3b-3a+b= -a+4b
b) a^2+ (-3b) + (-12a ^2) + (-7b) = a^2-3b-144a^2 -7b=-10b +145a
a)
b)