The thousand injuries of Fortunato I had borne as I best could, but when he ventured upon insult I vowed revenge.
16y² - x² shows the difference of squares.
square root of 16y² is 4y
square root fo x² is x
(4y - x)(4y + x)
4y(4y + x) -x(4y + x)
16y² + 4xy -4xy - x²
16y² - x²
The middle two terms is equal to zero.
<span>Both Edgar Allan Poe and the narrator of The Raven were orphaned at a very young age. The young orphan was taken in by John and Frances Allan.</span>