Factorise 125 x³+8y³+z³-30xyz

1.	Factorise 125 x³+8y³+z³-30xyz
Answer» (5x)³+(2y)³+(z)³-30xyz=(5x+2y+z)[(5x)²+(2y)²+(z)²-(5x×2y)-=(2y×z)-(5x×z)]= (5x+2y+z)(25x²+4y²+z² -10xy - 2yz- 5xz)

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