Zapisz w jak najprostszej postaci:
a) -4(2x + 0,5)
b) 3(x2 - 2) - (5 - 6x2)
c) -3(1 - 2y) + ½(6 - 12y)
d) -(x - 2) - 4 (½ - x)
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a) -4(2x + 0,5) = -8x - 2
b) 3(x2 - 2) - (5 - 6x2) = 3x2 - 6 - 5 + 6x2 = 9x2 - 11
c) -3(1 - 2y) + ½(6 - 12y) = -3 + 6y + 3 - 6y = 0
d) -(x - 2) - 4 (½ - x) = -x + 2 - 2 + 4x = 3x