1) \(-4,2x \cdot (-6y) = 25,2xy\)
2) \(8m + 5p - 13m - p = (8m - 13m) + (5p - p) = -5m + 4p\)
3) \(k - (17 - k) + (-k + 30) = k - 17 + k - k + 30 = k + 13\)
4) \(-6(4 + a) + 8(a - 6) = -24 - 6a + 8a - 48 = 2a - 72\)
Ответ:
1) 25,2xy
2) -5m + 4p
3) k + 13
4) 2a - 72
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