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Helppppppppppppppppppppppppppp me plz
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23 votes
Helppppppppppppppppppppppppppp me plz

Helppppppppppppppppppppppppppp me plz-example-1
User Michael Cornelius
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Yes they are equivalent expressions. If you take the z to the power of two, and subtract that from the other z to the power of two, it is zero. So you are left with four which is the answer
User PhilBrown
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