Mathematics

Solve the following equation by factorization:
(x + 3)(x - 3) = 27

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Given,

⇒ (x + 3)(x - 3) = 27

⇒ (x)² - (3)² = 27

⇒ x² - 9 = 27

⇒ x² = 27 + 9

⇒ x² = 36

⇒ x = $\sqrt{36}$

⇒ x = ± 6

Hence, x = {6, -6}.

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