Question

7. 3х2 - 243 = 0 please solve this​

Answer 1

$\huge\red{\underline {\underline {Solution:-}}}$

$3 {x}^{2} - 243 = 0$

$⇒3 {x}^{2} = 243$

$⇒ {x}^{2} = \frac{243}{3}$

$⇒ {x}^{2} = 81$

$⇒ x = \sqrt{81}$

$⇒x = 9$

$\bold\green{\:Hence,\:the\:value\:x\:is\:9}$

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