Find the least common multiple of x2 - 4x - 5 and x2 – 3x - 10.

a. (x + 1)(x - 2)(x - 5)
b. (x - 1)(x - 5)(x - 2)
c. (x + 1)(x - 5)(x + 2)
d. (x - 5)(x+ 2)(x - 1)

note: the given question is incomplete.

complete question is given below.

which is an example of kinetic energy?

a. the energy stored in ethanol  

b. a hockey puck sliding across the ice  

c. a compressed spring  

d. a ball sitting at the top of a ramp

solution: the kinetic energy is the energy posses by the virtue of the motion of the object.

in the given options, a, c and d are the example of potential energy because it is the energy posses by the virtue of the rest of the object. but option b has the kinetic energy as the object is in motion.

hence, a hockey puck sliding across the ice   is the apex example of kinetic energy.

so, the option (b) a hockey puck sliding across the ice   is the correct option.