Sos please help how to do this

asked Apr 8, 2022 24.1k views

25 votes

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11 votes

Answer:

±√7

Explanation:

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

SMGhost answered Apr 14, 2022

4.3k points

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