Question

$2 {x}^{2} - 27$​

Answer 1

Step-by-step explanation:

$\red{\bold{\underline{\underline{QUESTION:-}}}}$

Q:-

$2 {x}^{2} - 27$

$\huge\tt\underline\blue{Answer }$

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _✍️

════════════XXX═════════════

$⟹</p><p>2 {x}^{2} - 27$

$⟹</p><p> { (\sqrt{2x} )}^{2} - {(3 \sqrt{3} )}^{2}$

It is the form of a^2-b^2

$⟹</p><p> {a}^{2} - {b}^{2} = (a + b)(a - b)$

$⟹</p><p>So, {( \sqrt{2x} )}^{2} - {(3 \sqrt{3}) }^{2} = ( \sqrt{2}x + 3 \sqrt{3} )( \sqrt{2} x - 3 \sqrt{3} )$

$</p><p>∴2 {x}^{2} - 27 = ( \sqrt{2} x + 3 \sqrt{3} )( \sqrt{2} x - 3 \sqrt{3} )$

════════════XXX═════════════

HOPE IT HELPS YOU..

_____________________

Thankyou:)

Answer 2

$\huge \boxed{ \fcolorbox{red}{pink}{Answer}}$

• 2x² - 27
• 2x*2x - 27
• 4x - 27
• x = 27/4
• x = 6.75