How do you solve this equation x3 plus 13x2 equals -22x?

Answer 1

x3+13x2=-22x

add 22x to both sides:

x3+13x2+22x=0

now factor:

x(x2+13x+22)=0

x(x+11)(x+2)=0

x=0

x+11=0

x+2=0

Therefore the solution to this equation is x=0, x=-11, x=-2