Question

tolong bantu jawab kak jangan ngasal sama caranya ya kak kalo ada​

Answer 1

Jawaban:

C. {-3,6}

Penjelasan dengan langkah-langkah:

x² - 3x - 18 = 0

x² + 3x - 6x - 18 = 0

x(x + 3) - 6x - 18 = 0

x(x + 3) - 6x - 18 = 0

x × (x + 3) - 6(x + 3) = 0

(x + 3) × (x - 6) = 0

x + 3 = 0 (-3)

x - 6 = 0 (6)