Jawapan

2016-09-25T22:49:24+08:00
7(x²-2)/3 = 3x-4/3
7(x²-2) = 9x-4
7x²-14-9x+4 = 0
7x²-9x-10 = 0
(7x+5)(x-2) = 0
x1 = -5/7, x2 = 2