(1/7)x^2+(1/21)x-1=0April 19, 2021/in Uncategorized /by Liz (1/7)x^2+(1/21)x-1=0 https://academicpapers.net/wp-content/uploads/2020/08/LOGO-300x75.png 0 0 Liz https://academicpapers.net/wp-content/uploads/2020/08/LOGO-300x75.png Liz2021-04-19 04:59:252021-05-24 09:12:12(1/7)x^2+(1/21)x-1=0