To find the polynomial’s solutions, we need to factor it and apply the zero product property.
*I am going to assume that (x3) is actually x^3*
6(x^3)((x^2+4)(x+1)=0
According to the zero product property,
if a•b=0, then a=0 or b=0. So, we can take each term and set it equal to zero.
x^3=0
(Cube root) of x^3 = (cube root) of 0
x=0
(x^2+4)=0
x^2=-4
x= +/- i•2 (Not a real solution; it’s complex)
x+1=0
x=-1
So, x=-1, 0