Question

Find all the zeros of each equation.

x^3 – x^2 + 5x – 5 = 0


i*sqrt*5 , -i*sqrt*5, 1
i*sqrt*5 , -i*sqrt*5 , -1
*sqrt*5 , -*sqrt*5 , -1
i*sqrt*5 , 1

Answer 1

x^3+5x-x^2-5=0
x(x^2+5)-1(x^2+5)=0
(x^2+5)(x-1)=0

Answer 2

x=1, +i sqrt5, -i sqrt 5

Answer 3

thank you soo much (;

Answer 4

no problem (;