Answer:
5556-_(&:+:+&7&7&+::8&&&8
(2x-4)(x+5) expand with indicated multiplication...
2x^2+10x-4x-20
2x^2+6x-20 (it's the top one :P)
You would measure a book with centimeters because centimeters is much more smaller than a meter and easier to measure.
