Question

एक्स स्क्वायर माइनस 9​

Answer 1

Answer:

x^2-9=0

x^2=9

x=±3................

Answer 2

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x² - 9

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As both the terms are perfect squares, we can see this expression as (a² - b²)

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As we all know, (a² - b²) = (a + b) (a - b)

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x² - 9

= (x)² - (3)²

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If we compare this expression with (a² - b²), we understand that, (x can be replaced by a) & (b can be replaced by 3)

$\orange{\underline{\underline{Therefore,}}}$

x² - 9

= (x)² - (3)²

= (x + 3) (x - 3)

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$\blue{\underline{\underline{Hence,}}}$

x² - 9 = (x + 3) (x - 3)

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$\large\mathfrak{\green{\underline{\underline{❥︎❥︎❥︎HoPe\: iT \: HeLpS\: YoU........ ♡︎♡︎♡︎}}}}$