Faktorkan 2x pangkat 2 + 7x +5

x = –1 dan x = –5/2

Penjelasan dengan langkah-langkah:

2x² + 7x + 5 = 0

a = 2, b = 7, c = 5

a × c = 2 × 5 = 10➡️2 × 5

b = 7➡️2 + 5

maka:

2x² + 7x + 5 = 0

(2x + 2) (2x + 5) / 2 = 0

2(x + 1) (2x + 5) / 2 = 0

(x + 1) (2x + 5) = 0

x + 1 = 0

x = -1

2x + 5 = 0

2x = -5

x = -5/2