How to factorise -x2-1-2a-a2 

Asked by dnmgzp | 23rd May, 2019, 10:18: AM

Expert Answer:

x2-1-2a-a2 
= x2- (1+ 2a+a2)
x2- (1+ a)2 
= [x - (1 + a)][x + (1 + a)] 
= (x - a - 1)(x + a + 1)

Answered by Yasmeen Khan | 23rd May, 2019, 12:09: PM