Respuesta :

12345678o1234
the answer is c
x^2 = 49
x = √49
√49 = ±7
(X+7)((x-7)

This is call the difference of squares because there is no middle number and the last number is a square like 7×7 is 49
X+7=0. X-7=0
X=-7. X=7
C

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