Answer to Question #23814 in Abstract Algebra for marley

Question #23814
a^4+2a^3+a^2=0
1
Expert's answer
2013-02-05T11:37:54-0500
a^4+2a^3+a^2=0
Let's factor out a^2:
a^2(a^2+2a+1)=0
a^2(a+1)^2=0
So the solutions are a=0, a=-1

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