Factorize: x 4

We have: We can also write this as: =(x 2 ) 2 – (25) 2 Using identity: a 2 - b 2 = (a – b)(a + b) =(x 2 + 25)(x 2 – 25) Again, Using identity: a 2 - b 2 = (a – b)(a + b)

Factorize:
x⁴ – 625

We have:

We can also write this as:

=(x²)² – (25)²

Using identity: a² - b² = (a – b)(a + b)

=(x² + 25)(x² – 25)

Again,

Using identity: a² - b² = (a – b)(a + b)

Factorize:x4 – 625

Factorize:
x⁴ – 625