a^4+b^4−7a^2b^2 . Factorise
Answers
Answered by
2
Answer:
Answer
a
4
+b
4
−7a
2
b
2
Above terms can be written as
a
4
+b
4
+2a
2
b62−9a
2
b
2
we know that (a+b)
2
=a
2
+2ab+b
2
[(a
2
)
2
+(b
2
)
2
+(2×a
2
×b
2
)]−(3ab)
2
(a
2
+b
2
)
2
−(3ab)
2
we know that (a+b)
2
=a
2
+2ab+b
2
[(a
2
)
2
+(b
2
)
2
+(2×a
2
×b
2
)]−(3ab)
2
(a
2
+b
2
)
2
−(3ab)
2
We know that a
2
−b
2
=(a+b)(a−b)
(a
2
+b
2
+3ab)(a
2
+b
2
−3ab)
Answered by
11
Answer:
-3ab)
is answer
It's right answer!!
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