Question

x² – a² – 2a – 1 factorize it​

Answer 1

Answer:

x²-a²-2a-1

(x)²-{(a)²+2*a*1+(1)²}

using (a+b)²=a²+2ab+b²

x² - (a+1)²

using a²-b² = (a+b)(a-b)

(x+a+1)(x-a-1)

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Answer 2

= x² - 1 - 2a - a²

= x² - (1 + 2a + a²)

= x² - (a+1)²

= (x + (a+1)) (x - (a+1))

= (x + a + 1) (x - a - 1)