Question

-8, {0, -3, 1, -1}, {-1, 1, -2}, {3, -5, 4, -1}, {4, -2, 2}

Answer 1

Solution

17. -8

18. 0, -3 ,1 , -1

19. -1 ,1 ,-2

20. 3, -5 ,4 ,-1

21. 4, -2. 2