leland3 leland3

11-03-2021
Mathematics

contestada

sos please help how to do this

sos please help how to do this class=

Respuesta :

jessicasyasya jessicasyasya

11-03-2021

Answer:

±√7

Step-by-step explanation:

[tex]3 {x}^{2} + 7 = 28 \\ 3 {x}^{2} = 21 \\ {x}^{2} = 7 \\ x = \sqrt{7} [/tex]

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