8. -4kq - 4qk^2 - 8k^2q^2
9. (-10x - 5) - (6x + 4)
= -16x - 1
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8. -4kq - 4qk^2 - 8k^2q^2
9. (-10x - 5) - (6x + 4)
= -16x - 1