Question

The factor of (x^2-1-2a-a^2) is

Answer 1

$\huge\boxed{\fcolorbox{#7fff00}{white}{Hello Dear}}$$\huge\bold\pink{{{{{{Answer}}}}}}$

━━━━━━━━━━━━━━━━━━━━━━━━━━

➪${x}^{2} - 1 - 2a - {a}^{2}$

➪${x}^{2} - ( 1 + 2a + {a}^{2} )$

➪${x}^{2} - ({1}^{2} + 2 × 1 × a + {a}^{2})$

➪${x}^{2}- {( 1 + a )}^{2}$

➪${( x + 1 + a )}{[ x - ( 1 + a ) ]}$

➪${( x + a + 1 )}{( x - a - 1 )}$

so, factor of ${x}^{2}-1-2a-{a}^{2}$ is

${( x + a + 1 )}{( x - a - 1 )}$

━━━━━━━━━━━━━━━━━━━━━━━━━━