Answer:
[tex](2x + 7) \times (x + 3)[/tex]
Step-by-step explanation:
[tex] {2x}^{2} + 13x + 21[/tex]
[tex] {2x}^{2} + 7x + 6x + 21[/tex]
[tex]x \times (2x + 7) + 3(2x + 7)[/tex]
[tex] = (2x + 7) \times (x + 3)[/tex]
