Respuesta :

SoapyMcTavish
7(x+7)(x-7) is in the form (a+b)(a-b) so it's equal to [tex]a^{2}- b^{2} [/tex]
Which give us:
(x+7)(x-7) = [tex] x^{2} - 49[/tex]

Hope this Helps :)
Panoyin
(x + 7)(x - 7)
x² - 7x + 7x - 49
x² - 49