Tolong bantu jawab dong :) ​

Penjelasan dengan langkah-langkah:

No 1

x² + 4x – 12 = 0

x² + 6x – 2x – 12 = 0

x(x + 6) – 2(x + 6) = 0

(x + 6)(x – 2) = 0

x + 6 = 0 dan x – 2 = 0

x = -6 dan x = 2

No 2

x² + 6x + 5 = 0

x² + 5x + x + 5 = 0

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

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

x + 5 = 0 dan x + 1 = 0

x = -5 dan x = -1

No 3

5x² + 13x + 6 = 0

5x² + 10x + 3x + 6 = 0

5x(x + 2) + 3(x + 2) = 0

(x + 2)(5x + 3) = 0

x + 2 = 0 dan 5x + 3 = 0

x = -2 dan x = -3/5

Penjelasan dengan langkah-langkah:

maaf kalau salah jangan lupa jadikan jawaban terbaik ya (◠‿◕)