evanmarcus
evanmarcus
23-02-2021
Mathematics
contestada
helppppppppppppppppppppppppppp me plz
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halli50
halli50
23-02-2021
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
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