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Help Equations with square roots & cube roots HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!! SOS

Help Equations with square roots & cube roots HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!! SOS-example-1
User Tribbloid
by
4.0k points

2 Answers

6 votes

Answer:

C and D

Explanation:

x² = 81

x = +/- sqrt(81)

x = +/- 9

User Capcj
by
3.9k points
6 votes

Answer:

x = +sqrt(81)

x = -sqrt(81)

Explanation:

x^2 = 81

Take the square root of each side

sqrt(x^2) = ±sqrt(81)

x = ±sqrt(81)

User Newton Falls
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4.1k points