Respuesta :

SoulYT

Answer:

(3x - 1) • (3x + 7)

Step-by-step explanation:

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Hope this helps!

febryantohutagalung

Step-by-step explanation:

[tex]\tt{}( {9x}^{2} - 18x - 7)[/tex]

[tex]\tt{} {9x}^{2} + 21 - 3x - 7[/tex]

[tex]\tt{}3x \times (3x + 7) -( 3x + 7)[/tex]

[tex]\tt{}(3x + 7) \times( 3x - 1)[/tex]