Question

24-42x-12x² = 0
4-7x-2x² = 0
......... (faktornya?)

Answer 1

Klo nggk slah...
24-42x-12x'=0
-12x'-42x+24=0  (sma2 kli -1)
12x' + 42x -24= 0 (sma2 bgi 6)
2x' + 7x - 4 = 0
(2x-1) (x+7)=0
x = 1/2 atau x = - 4

4 - 7x - 2x' = 0
-2x' - 7x + 4 = 0   (sm2 kli -1)
2x' + 7x - 4 =0
(2x-1) (x+7)=0
x = 1/2 atau x = - 4