Njia sahihi ya kupata roots zote za x³ - 27 = 0 ni hii;
x³ - 27 = 0
x³ - 3³ = 0
since a³ - b³ = (a - b)(a² + ab + b²)
(x - 3)(x² + 3x + 9) = 0
for x - 3 = 0, x =0
for (x² + 3x + 9) = 0
x = [ -3 ± 3i√3 ] / 2
Kwasababu
Mshana Jr ametaka real roots basi tutampa jibu lake la x =3