2/3 х (2х-1 1/4)+6 5/6 = 7 1/4

Question

2/3 х (2х-1 1/4)+6 5/6 = 7 1/4

Answer 1

(2/3)х·(2х-(11/4))+6 5/6=7 1/4,
(4/3)х²-(11/6)х+(41/6)-(29/4)=0, умножим на 12,
16х²-22х+82-87=0,
16х²-22х-5=0,
х1=(22-√(484+320))/32=(11+√201)/16,
х2=(11-√201)/16.