Resolve into factors :
1. x2+2xy +y2-a?.
Answers
Answered by
1
Answer:
The factor of 1−x
2
−2xy−y
2
is
Rearranging the terms
⇒ 1−(x
2
+2xy+y
2
)
⇒ −1(x+y)
2
[∵ (x+y)
2
=x
2
+2xy+y
2
]
⇒ (1−(x+y)
2
)
⇒ (1)
2
=(x+y)
2
[∵(1)
2
=1]
Using a
2
−b
2
=(a+b)(a−b)
⇒ (1−(x+y))(1+(x+y))
⇒ (1−x−y)(1+x+y) - solution
Answered by
1
Answer:
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Explanation:
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