Question

Factouse to (x²+4) - 2a-0²-5.​

Answer 1

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

[ Since, a

2

+2ab+b

2

=(a+b)

2

]

We know, a

2

−b

2

=(a+b)(a−b)

⇒ (x+1+a)(x−1−a)

∴ x

2

−1−2a−a

2

=(x+1+a)(x−1−a)