Answer:
x = 2/7 or -1
Step-by-step explanation:
5(7x + 5) x = 10
35x² + 25x -10 = 0
35x² + 35x - 10x -10 = 0
35x( x + 1) -10( x + 1) = 0
(35x - 10) (x + 1) = 0
