Odpowiedź:
B) (-3/4)2 + (-1/2)3 = 9/16 - 1/8 = 7/16
(-2/3)3 - (-5)3 = -8/27 + 125 = (albo) 3367/27 albo 124 19/27
C) -23 x 3+ (-1/2)2 = -95/4 = -23 3/4
(-2 1/2)2 + ( 3 1/2) 2 = 37/2 = 18 1/2
