HABISIN POIN
Himpunan Penyelesaian dari x² – 2x – 8 = 0 adalah …*
x² – 2x – 8 = 0
(x + 2)(x – 4)
X1 = x + 2 = 0
x = 0 – 2
x = –2
X2 = x – 4 = 0
x = 0 – (-4)
x = 4
HP = {-2, 4}
~VVM
Penyelesaian :
( x + 2 )( x – 4 ) = 0
x + 2 = 0
x = 0 – 2
x = -2
x – 4 = 0
x = 0 – ( -4)
x = 0 + 4
x = 4
Hp = { -2, 4 }