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Korvikt [17]
3 years ago
15

Help me! solve for u

Mathematics
2 answers:
RSB [31]3 years ago
6 0

Answer:

u = 9  and u = -9

Step-by-step explanation:

u^2 = 81

Take the square root of each side

sqrt(u^2) =± sqrt(81)

u = ±9

Rashid [163]3 years ago
3 0

Answer:

Brainliest!!!

Step-by-step explanation:

\sqrt{81} or ±9

they both equal the equation u^2 = 81

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