Question

determine as raizes das equaçoes
a)(x-2)(x-3)(x-4)=0
b)3(x+2i)(x-2i)(x-1)=0
c)4(x-3)(x+2)(x+i)=0
d)(x+i)(x-2)(x-3i)=0

Answer 1

Boa noite Naidojasdast

basta zerar cada termo

a)(x-2)(x-3)(x-4)=0 , x1 = 2, x2 = 3, x = 4

b)3(x+2i)(x-2i)(x-1)=0,  x1 = -2i, x2 = 2i, x = 1

c)4(x-3)(x+2)(x+i)=0,  x1 = 3,  x2 = -2, x3 = -i

d)(x+i)(x-2)(x-3i)=0  , x1 = -i, x2 = 2, x3 = 3i