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Sos please help how to do this

Sos please help how to do this
asked 24.1k views
25 votes
Sos please help how to do this

Sos please help how to do this-example-1
asked
User MacHala
by
8.1k points

1 Answer

11 votes

Answer:

±√7

Explanation:


3 {x}^(2) + 7 = 28 \\ 3 {x}^(2) = 21 \\ {x}^(2) = 7 \\ x = √(7)

answered
User SMGhost
by
8.1k points
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