Respuesta :

egwreader2006

Answer:

(y+7x^3) (y-7x^3)

Step-by-step explanation:

dynamic86

Step-by-step explanation:

Since since are perfect squares, factor uusing difference of square formula.

a² - b² = (a+b) (a - b) where a = y³ and b = 7x³

(y³ + 7x³) (y³ - 7x³)