Respuesta :

(X^2-1)(x^2-49)
So for the first one take
X^2=1
X=1
The second
X^2=49
X=7
X=7,1
[tex](x^2-49)(x^2-1) = (x-7)(x+7)(x-1)(x+1) = 0, so x = 7, x = -7, x = 1, x = -1. [/tex]