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Solve the quadratic equation by the appropriate method. x^2-81=0

Solve the quadratic equation by the appropriate method. x^2-81=0
asked 229k views
1 vote
Solve the quadratic equation by the appropriate method.

x^2-81=0

asked
User Qschulz
by
7.8k points

1 Answer

4 votes

Answer:

x*x-81=0

x*x=81

x=√81

x=9

answered
User Sercan
by
8.3k points
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