Tentukan HP persamaan berikutpakai cara

Tentukan HP persamaan berikutpakai cara

PERSAMAAN KUADRAT

•

x² + 7x + 6 = 0

(x + 1)(x + 6) = 0

x = -1 atau x = -6

HP = {-1,-6}

••

2x² – x – 15 = 0

(2x + 5)(x – 3) = 0

x = -5/2 atau x = 3

HP = {-5/2 , 3}

A.
${x}^{2} + 7x + 6 = 0 \ (x + 6)(x + 1) \ x = - 6 : : x = - 1$
HP = {-6,-1}

b.
$2 {x}^{2} - x - 15 = 0 \ (2x + 5)(x - 3) \ 2x = - 5 \ x : = : frac{ - 5}{2} \ x = 3$
HP = {-5/2 , 3}