What are the real and complex solutions of the polynomial equation x^3 - 64 = 0 a. 4, -1 + 2i sqrt3, -1 + 2i sqrt3b. 4, 1 +2i sqrt3 , 1 + 2i sqrt3c. 4, -2 + 2i sqrt3 -2 - 2i sqrt3d. 4, -2 + 2i sqrt3, 2 + 2i sqrt3

Acivilization exists for several hundred yeaars, developing its own language. such a civilization probably has been: a. farming corn b. suffering from a lack of contact with the outside world. c. isolated by mountains or some other physical barriers. d. starving from lack of trade.