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Best Answer
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
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