Question

factorise a2- b2- 2B - 1 ​

Answer 1

$a^2 - b^2 - 2b - 1$

$a^2 - (b^2 + 2b + 1)$

$a^2 - (b + 1)^2$

$(a - b - 1)(a + b + 1)$

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Answer 2

Answer:

HEY MATE,

HERE'S YOUR ANSWER.

a² - b² - 2b - 1

= a² - (b² + 2b + 1)

= a² - (b + 1)²

= (a + b + 1)(a - b - 1)

HOPE IT HELPS YOU.