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vivado [14]
3 years ago
9

Solve for the equation y to the second power = 81

Mathematics
2 answers:
Orlov [11]3 years ago
6 0

Answer:

<h2>y = -9 or y = 9</h2>

Step-by-step explanation:

y^2=81\iff y=\pm\sqrt{81}\\\\y=-9\ or\ y=9\ because\ (-9)^2=81\ and\ 9^2=81

dybincka [34]3 years ago
3 0

Answer:

9

Step-by-step explanation:

9*9=81

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Answer:

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explanation:

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