Question

ख, समीकरण 7x2-28 = 0 को हल कीजिए ?​

Answer 1

SOLUTION

TO SOLVE

The equation

$\sf{7 {x}^{2} - 28 = 0}$

EVALUATION

Here the given equation is

$\sf{7 {x}^{2} - 28 = 0}$

We solve above equation as below

$\sf{7 {x}^{2} - 28 = 0}$

$\sf{ \implies \: 7 {x}^{2} = 28 }$

$\sf{ \implies \: {x}^{2} = 4 }$

$\sf{ \implies \: x = \pm \: \sqrt{4} }$

$\sf{ \implies \: x = \pm \: 2 }$

FINAL ANSWER

Hence the required solution is

$\sf{ x = \pm \: 2 }$

━━━━━━━━━━━━━━━━

Learn more from Brainly :-

1. If x=√3a+2b + √3a-2b / √3a+2b - √3a-2b

prove that bx²-3ax+b=0

https://brainly.in/question/19664646

2. the order of the surd 7√8

https://brainly.in/question/31962770