09-06-2014
Mathematics

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Simplify the expression:z2-z(z+3)+3z

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Аноним Аноним

14-06-2014

[tex]z^2-z(z+3)+3z=z^2-z\cdot z-z\cdot3+3z=z^2-z^2-3z+3z=0[/tex]

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