Question

Help please it needs to be don by 4:00​

Answer 1

1: x=1
2: (1,-4)
3: min
4: -3
5: -1 and 3
6: all real numbers
7: y>or equal to -4
8: x=2
9: (2,-1)
13: c=121

those are all i can do for now hope they help