Question

Factorise:

i) m 4 – 16​

Answer 1

m⁴-16

(m²)²- 4²

(m²-4) (m²+4)

(m+2) (m-2) ( m²+4)

factors are (m+2) (m-2) (m²+4)

pls mark my answer as a brainliest

Answer 2

Answer:

m⁴ - 16

=> (m²)² - (4)²

Using the identity a² - b² = (a+b)(a-b)

=> (m²+4)(m²-4)

=> (m²+4){(m)² - (2)²}

=> (m²+4)(m+2)(m-2)