Q) Factorise: x^4+y^4+x^2y^2
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x⁴+y⁴+x²y²
= x⁴+y⁴+2x²y²-x²y²
= (x²)²+(y²)²+2(x²)(y²)-x²y²
= (x²+y²)²-(xy)²
= (x²+y²+xy)(x²+y²-xy)
= x⁴+y⁴+2x²y²-x²y²
= (x²)²+(y²)²+2(x²)(y²)-x²y²
= (x²+y²)²-(xy)²
= (x²+y²+xy)(x²+y²-xy)
TanuM514:
Sorry but the answer is wrong as u have copied different question.
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