Factorise : 1 – 2ab – (a2 + b2
)
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Answered by
4
Answer:
=1-2ab-a²-b²
=1-(2ab+a²+b²)
=1²-(a+b)²
=(1-a-b)(1+a+b)
Answered by
0
Answer:
1-2ab-a2-b2
Step-by-step explanation:
1-2ab-a2-b2
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