Respuesta :

[tex]7x^2+21x-35[/tex]

Factors of 7:

7,1

Factors of 21:

21,7,3,1

Factors of 35:

35,7,5,1

Therefore, the GCF is 7, so:

[tex]7x^2+21x-35=7(x^2+3-5)[/tex]

Answer:

7(x² + 3 - 5)