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= 8 - 4x
b. 2x (y + 5)
= 2xy + 10x
c. (-3) (x² + 2x - 1)
= (-3)x² - 6x + 3
d. 7 (-a + 2b - 3c)
= (-7)a - 14b - 21c
e. 2 (x - 5) + 6 (-3x + 2)
= 2x - 10 - 18x + 12
= 2x - 18x - 10 + 12
= -6x + 2
= 2 (-3x + 1)
f. 11 (x² + 2xy + 2y²) - 4 (x² + 2)
= 11x² + 22xy + 22y² - 4x² - 8
= 11x² - 4x² + 22xy + 22y - 8
= 7x² + 22xy + 2y² - 8