What are the possible numbers of positive, negative, and complex zeros of f(x) = −3x4 − 5x3 − x2 − 8x + 4? a. positive: 2 or 0; negative: 2 or 0; complex: 4 or 2 or 0 b. positive: 1; negative: 3 or 1; complex: 2 or 0 c. positive: 3 or 1; negative: 1; complex: 2 or 0 d. positive: 4 or 2 or 0; negative: 2 or 0; complex: 4 or 2 or 0

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.