Factorise completely : m^4 -16
Answers
Answered by
1
Answer:
m⁴ - 16
= (m²)² - (4)²
= (m² - 4)²
= (m²)² + (4)² - 2×m²×4
= m⁴ + 16 - 8m²
= m⁴ - 8m² + 16
Answered by
1
Factorize:-
m⁴ - 16
=> (m²)² - (4)²
=> (m² + 4) (m² - 4)
=> (m² + 4) (m² - 2²)
=> (m² + 4) (m - 2) (m + 2)
Identity used here:-
a² - b² = (a + b) (a - b)
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