Jawapan

2016-06-05T21:28:44+08:00
x(3×1) = 4(2+x)
3x²- x = 8 = 4 x
3x²× -4 × -8 = 0
3x² - 5x -8 = 0
(a = 3b = 5c =8
(3x-8)(x+1) = 0
x = 8 per 3  x=1