Odpowiedź:
a)
4(- 2x + y - 1) = - 8x + 4y - 4
b)
(x - 15)(x - 1) = x² - 15x - x + 15 = x² - 16x + 15
c)
3(3x - 2y + 3z) - 5(x - y - 2) = 9x - 6y + 9z - 5x + 5y + 10 = 4x - y + 9z + 10
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Odpowiedź:
a)
4(- 2x + y - 1) = - 8x + 4y - 4
b)
(x - 15)(x - 1) = x² - 15x - x + 15 = x² - 16x + 15
c)
3(3x - 2y + 3z) - 5(x - y - 2) = 9x - 6y + 9z - 5x + 5y + 10 = 4x - y + 9z + 10