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14z^{2}+7z+4z-14z^{2}-11z
Combine 11z^{3} and -11z^{3} to get 0.
14z^{2}+11z-14z^{2}-11z
Combine 7z and 4z to get 11z.
11z-11z
Combine 14z^{2} and -14z^{2} to get 0.
0
Combine 11z and -11z to get 0.
0
Factor out z.
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