Factorise : x7y + xy7
Answers
Answered by
1
Step-by-step explanation:
Correct option is
B
xy(x
2
+y
2
)(x
4
+y
4
−x
2
y
2
)
x
7
y+xy
7
=xy(x
6
+y
6
)=xy(x
2
+y
2
)(x
4
−x
2
y
2
+y
4
)
as (a
3
+b
3
)=(a+b)(a
2
−ab+b
2
)
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