Question

x2 - 1 - 2a - a2
factorize it class =9 chapter = polinomial​

Answer 1

Answer:

The given polynomial is factorized in the uploaded photo

Answer 2

${x}^{2} - 1 - 2a - {a}^{2} \\ \\ = > {x}^{2} - ( {a}^{2} + 2a + 1) \\ \\ = > ( {x)}^{2} - (a - 1 ) {}^{2} \\ \\ = > (x - (a + 1)) \: (x + (a + 1) \\ \\ = > (x - a - 1) \: (x + a + 1)$