Question

please help! if anybody is good at equivalent polynomial expressions please help!!

Answer 1

Pull out a 5 from the first parenthesis
(5x+15) = 5(x+3)

Pull out a 25 from the second parenthesis
(25x+75) = 25(x+3)

(5x+15) + (25x+75) = your first answer = 5(x+3) + 25(x+3)

Answer 2

5x +15+25x +75=0
5(× +3) + 5 (5× +15)