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5 votes
What is the factored form of z^2– 9?

2 Answers

9 votes

Answer:

OR just 3

Explanation:

z^2-9 becomes sqrt(z^2)=sqrt(9) becomes z=+-3

User Integ
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11 votes
z^2-9 becomes sqrt(z^2)=sqrt(9) becomes z=+-3, or just 3
User Giuliana
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