Please help me to answer these questions with COMPLETE & CLEAR SOLUTION

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3. Find a least degree polynomial function with real coefficients that has the given zeros.(The leading coefficient should be 1) 1,1 - 21,1 - V5 4. determine the possible numbers of positive and negative zeros of the function. f(x) = 4x3 - 3x2 + 2x - 110. Each face of a cube is painted either red or blue, each with probability 1/2. The color of each face is determined independently. What is the probability that the painted cube can be placed on a horizontal surface so that the four vertical faces are all the same color