Please temen bantu ngerjain nomer 17-20 besok pagi di kumpulin ....please thanks
theunknown
17. 2x^2 -bx - 7 = 0 salah satu akar = -1 (Cara Horner) (gak bisa bikin tabel) 2 + b -7 =0 b = 5 2x^2 -5x -7 (2x + 2) (2x-7) = (x+1) (x-7/2) x = -1 v x = 7/2 jadi akar satunya lagi itu 7/2
salah satu akar = -1
(Cara Horner)
(gak bisa bikin tabel)
2 + b -7 =0
b = 5
2x^2 -5x -7
(2x + 2) (2x-7)
= (x+1) (x-7/2)
x = -1 v x = 7/2
jadi akar satunya lagi itu 7/2