Question

Let's factorise:-

x to the power four - 1​

Answer 1

Answer:

x to the power fourv_2

Step-by-step explanation:

I hope you this will help you

Answer 2

Answer :

$= {x}^{4} - 1 \\ = {x}^{4} - {1}^{4} \\ = ( {x}^{2} {)}^{2} - ( {1}^{2} {)}^{2} \\ = ( {x}^{2} + {1}^{2} )( {x}^{2} - {1}^{2} ) \\ ( {x}^{2} + 1) \\ (x + 1) \\ (x - 1)$