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Help please I need an answer for this fast

Help please I need an answer for this fast
asked 40.7k views
17 votes
Help please I need an answer for this fast

Help please I need an answer for this fast-example-1
asked
User Sudhir Jangam
by
8.0k points

1 Answer

11 votes

Answer:

B 9, -9

Explanation:

x^2 - 81 = 0

Add 81 to each side

x^2 = 81

Take the square root of each side

sqrt(x^2) = sqrt(81)

x = ±9

answered
User Blelump
by
7.7k points
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