Discover Questions

If x-1, x+2, and x+4 are factors of a polynomial p(x), which of the following must be equal to 0?
A) p(-2)
B) p(-1)
C) p(2)
D) p(4)? Prove that A is dense in X iff A closure equals X. A subset X.? Is there any good chance of finding life in our Solar system, other than our Earth? What is the cartesian form for sqrt(e ^ipi/3? How can we differentiate between alcohol and ether by chemical tests?