Question

Factorise x^4-14x^2y^2-51y^4

Answer 1

$x {}^{4} - 14x {}^{2} y {}^{2} - 51y {}^{4 } \\ x {}^{4} - (17 - 3)x {}^{2} y {}^{2} -51y {}^{4} \\ x {}^{4} - 17x {}^{2} y {}^{2} + 3x {}^{2} y {}^{2} - 51y {}^{4} \\ x {}^{2} (x {}^{2} - 17y {}^{2} ) + 3y {}^{2} (x {}^{2} - 17y {}^{2} ) \\ (x {}^{2} + 3y {}^{2} )(x {}^{2} - 17y {}^{2} )$

Answer 2

Answer:

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