Mohon bantuannya kak​

3x² + 6x – 45 = 0

Kedua ruas dibagi 3, diperoleh

x² + 2x – 15 = 0

x² + 5x – 3x – 15 = 0

x(x + 5) – 3(x + 5) = 0

(x – 3)(x + 5) = 0

x – 3 = 0 → x = 3

x + 5 = 0 → x = -5

HP = {-5, 3}

Jawaban: B

Semoga membantu.