What is the completely factored form of x4y – 4x2y – 5y?

y(x2 – 5)(x2 1)

y(x2 5)(x2 – 1)

(x2y – 5)(x2 1)

(x2y 5)(x2 – 1)

Factor the polynomial, if possible. if the polynomial cannot be factored, write prime. 9n^3 + 27n^2 – 25n – 75

The path traveled by a bottlenose dolphin as it jumps out of water is modeled by the equation y=-0.4+3x, where t is the height above water and x is the horizontal distance in feet. if a beam of light is shone upward at an angle modeled by the equation x+y=10, at what height from the waters surface will the beam of light hit the dolphin

How many degrees are in the sum of an interior angle and and exterior angle of a regular hexagon?