aashley11 aashley11

16-05-2020
Mathematics

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Factor the expression x2 - 49.
A. 7(x² – 7)
B. 7.(2-7)
C. 2+7(2-7)
D. (x + 7)(x-7)

Respuesta :

tylerflorida34638 tylerflorida34638

16-05-2020

x^2 - 49 = (x + 7)(x - 7) = x^2 - 7x + 7x = 49 = x^2 - 49

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