Răspuns:
6x² + 13x + 5 = (3x + 5) × (2x + 1)
Explicație pas cu pas:
6x² + 13x + 5 =
6x² + 10x + 3x + 5 =
(6x² + 10x) + (3x + 5) =
2x × (3x + 5) + (3x + 5) =
(3x + 5) × (2x + 1)