Answer:
Personification gives a very good and descriptive meaning to an otherwise lifeless object.
Ex: "The trees branches whispered in the wind"
Ex: "The sad old house sat on top of the hill"
(2x-3)(x+7)=
2x^2 + 14x - 3x - 21=
2x^2+11x-21.
I'm like so sorry that I'm a teacher on this website but please stop cheating.