Multiply (x + 1)3
(x + 1)2 = (x + 1)(x + 1)2
= (x + 1)(x2 + 2x + 1)
=x+
3 x2+2
DONE

reduce the friction between its moving parts

step-by-step explanation:

in fact, by reducing the friction between the moving parts of the machine, it is possible to reduce the energy wasted due to this friction; therefore, more input energy is converted into useful work, and this will improve the efficiency of the machine.

5 pm

step-by-step explanation:

good luck on ur quiz test or homework. have a good day : )