For polynomial do the in order.
F(x)= 3x^4-14x^2-5
A. Use descartes' rule of signs to determine possible number of positive and negative real zeros
B. Use rational zeros theorem to find all possible rational zeros of function
C. Compute the rational zeros, if any.
D. Determine all the other zeros, if any.
E. Determine any other complex zeros, if any.