ख, समीकरण 7x2-28 = 0 को हल कीजिए ?
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SOLUTION
TO SOLVE
The equation
[tex] \sf{7 {x}^{2} - 28 = 0}[/tex]
EVALUATION
Here the given equation is
[tex] \sf{7 {x}^{2} - 28 = 0}[/tex]
We solve above equation as below
[tex] \sf{7 {x}^{2} - 28 = 0}[/tex]
[tex] \sf{ \implies \: 7 {x}^{2} = 28 }[/tex]
[tex] \sf{ \implies \: {x}^{2} = 4 }[/tex]
[tex] \sf{ \implies \: x = \pm \: \sqrt{4} }[/tex]
[tex] \sf{ \implies \: x = \pm \: 2 }[/tex]
FINAL ANSWER
Hence the required solution is
[tex] \sf{ x = \pm \: 2 }[/tex]
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