26. Factorise each of the following: (i) 3x^ 4 -7x^ 2 y^ 2 +2y^ 4 – InterviewSolution

1.	26. Factorise each of the following: (i) 3x^ 4 -7x^ 2 y^ 2 +2y^ 4
Answer» 3x⁴-7x²y²+2y⁴=3x⁴-(6+1)x²y²+2y⁴=3x⁴-6x²y²-x²y²+2y⁴=3x²(x²-2y²)-y²(x²-2y²)=(x²-2y²)(3x²-y²)

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