factorise l-2ab-a²-b²
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Answered by
3
Solution is in the attachment..
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Answered by
2
Answer: (1 + a +b).(1 - a - b)
Step-by-step explanation:
1 - 2ab - (a 2 + b 2 )
= 1 -2ab -a2- b2
= 1 - (2ab +a2 +b2)
= 1- (a+b)2
= (1 + a +b).(1 - a - b)
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