1) x = 0 or x = 2) y = 5 or y = -13) z = 0 or z = 4) t = 0 or t = -15) x = -13/2 or x = 6) x = 5 or x = -5
1) x = 0 or x =
2) y = 5 or y = -1
3) z = 0 or z =
4) t = 0 or t = -1
5) x = -13/2 or x =
6) x = 5 or x = -5