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Simplify the Expression : z^3+6z^2 +z +z^2 +9z +1 ​
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Simplify the Expression : z^3+6z^2 +z +z^2 +9z +1 ​

User Jeremias Nater
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z^3+7z^2+10z+1
add all of the parts with the same exponent together
User Miemengniao
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