Weegy: The answer is v = 4. :) User: solve for b.... b^2 - 6b - 7=0 (More)

Weegy: a. Factor as: (x - 3)(x + 1)^3 = 0 zeros are at x = 3 and x = -1 y ' = 4x^3 - 12x - 8 4(x - 2)(x + 1)^2 zeros at x = 2 and x = -1 - - - - - - - - - - - - - - - - - - - - b. y " = 12x^2 - 12 y "(2) = 36 which is positive, [ so x = 2 is a minimum point y "(-1) = 0, an inflection point - - - - - - - - - - - - - - - - - - - - c. f(x) decreases from [-8, 2] and increases from [2, +8] - - - - - - - - - - - - - - - - - - - - d. f(x) is negative for x = [-1, 3] and positive for all other real values ] (More)

Weegy: f^3 + s^3 is the answer. (s+f)(s^2 - sf +f^2) = f^3 + s^3 (More)

Weegy: r^2 + 9r/20 + 1/20 (More)

Weegy: (-2z)^2 (4z^6)^2 = 64z^14 (More)