Question

factorisation---- (x²+1)²-(x²-1)-4x²


please follow answer me step by step

and give me write answer​

Answer 1

Answer:

0

Step-by-step explanation:

expanding the

${( {x}^{2} + 1) }^{2} - {( {x}^{2} - 1)}^{2} - 4 {x}^{2} \\ = ({x}^{4} + 1 + 2 {x}^{2}) - ( {x}^{4} + 1 - 2 {x}^{2} ) - 4 {x}^{2} \\ = {x}^{4} + 1 + 2 {x}^{2} - {x}^{4} - 1 + 2 {x}^{2} - 4 {x}^{2} \\ every \: element \: will \: cancel \: each \: other \: and \: we \: get \: the \: answer \: zero \\ = 0$