Simplify whatever is in the parenthesis:
(5×^2-4x-1) and <span>(4x^2-4)
after that subtract the numbers you got from both </span>parenthesis after simplifying
Esta pregunta obtendría una mejor ayuda si estuviera en español.
What about the diversion of water to the factory
SPANISH TO ENGLISH
I hope this helps, let me know if it doesn't make sense