a square x square+2abxy+b square y square
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Using the identity (a+b)^2=a^2+b^2+2ab
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Answer:
(a²-b²)²+(a²+b²)²
=>Expanding both of them we get,
(a⁴+b⁴-2a²b²) + (a⁴+b⁴+2a²b²)
Hence, on opening the brackets...
It gives, 2(a⁴+b⁴)
Step-by-step explanation:
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