Find the product of x^2+2x-4 and 3x.

a. 3x^3+6x^2+12x

b. 3x^3+6x^2-12x

c. 3x^3+2x-4

d. -3x^3

It takes an ant farm 3 days to consume 1/2 of an apple. at that rate, in how many days will the ant farm consume 3 apples

The equation of a parabola is given. y=18x2+4x+20 what are the coordinates of the focus of the parabola?

Amass weighing 16 pounds stretches a spring 8/3 feet. the mass is initially released from rest from a point 2 feet below the equilibrium position, and the subsequent motion takes place in a medium that offers a damping force that is numerically equal to 1/2 the instantaneous velocity. find the equation of motion if the mass is driven by an external force equal to f(t)=cos(2t).