Question

factorize
a⁴-4 using algebraic identities

please provide a step by step explanation
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Answer 1

if my answer is correct please mark as brainliest

Answer 2

$\huge\red{ANSWER:}$

Given :

$\red{a⁴ - 4}$

To do :

$\orange{Factorise : a⁴ - 4}$

Step by step explanation :

• Identity 3 : a² - b² = (a + b)(a - b)
• Now, a → a² , b → 2²}
• (a²)² - 2² = (a² + 2)(a² - 2)
• Identity 3 : a² - b² = (a + b)(a - b)
• Now, a → a , b → 2
• (a² + 2)(a² - 2) = (a² + 2)(a + 2)(a - 2)