factorize x²-1-2a-a²
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Answered by
25
- x² - 1 - 2a - a²
= x² - ( 1 + 2a + a² ) [(a+b)² = a² + b² + 2ab ]
= x² - ( 1 + a )² [ a² - b² = ( a+b)(a-b)
= (x + 1 + a ) (x - 1 - a)
Thank u.
Goutamee1234:
tysmmmm
Answered by
5
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^2-[ (1)^2+2×1×a+(a)^2]
=x^2- (1+a)^2
=(x-1-a)(x+1+a)
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