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Ugo [173]
3 years ago
8

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

Mathematics
1 answer:
Salsk061 [2.6K]3 years ago
7 0

Answer:

x*x-81=0

x*x=81

x=√81

x=9

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Answer:

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it can be interpreted in several different ways....

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Step-by-step explanation:

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erma4kov [3.2K]

Answer:

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