Respuesta :
-4X^4 - 44x^2 + 3600 = 0
divide through by -4:-
x^4 + 11x^2 - 900 = 0
900 = 36 * - 25 and 11 = 36-25 so the factors are
(x^2 + 36)(x^2 - 25) = 0
x^2 = - 36 giving x = 6i and -6i
x^2 = 25 giving x = 5 and x = -5
solution set is {-5, 5, 6i, -6i}
divide through by -4:-
x^4 + 11x^2 - 900 = 0
900 = 36 * - 25 and 11 = 36-25 so the factors are
(x^2 + 36)(x^2 - 25) = 0
x^2 = - 36 giving x = 6i and -6i
x^2 = 25 giving x = 5 and x = -5
solution set is {-5, 5, 6i, -6i}
