Answer:
% Increase = Increase / Original Number × 100.
Step-by-step explanation:
5x² - 10x - 7 + 5x² + 8 = 5x² + 5x² -10x - 7 + 8
= 10x² - 10x + 1
Bring like terms together and add/ subtract the like terms
Bloody nose again check lol
whoa
the x should be 10x7-(9x6)
because it should be 10x7-(4+30)
