Tugas : Tentukan akar –akar persamaan kuadrat berikut dengan cara

Penjelasan dengan langkah-langkah:

x2 + 5x + 6 = 0

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

x = -3 / x = -2

….

x2 – 4x + 4 = 0

(x – 2)(x – 2) = 0

x = 2

….

2×2 + 3x – 5 = 0

(2x + 5)(x – 1) = 0

2x = -5 / x = 1

x = -5/2 atau x = 1

…

3×2 – 2x – 5 = 0

(3x – 5)(x + 1) = 0

3x = 5 / x = – 1

x = 5/3 atau x = -1