Question 114014

Question 114014

Factorise

\(343{{m}^{3}}+8{{n}^{3}}\)
\({{x}^{3}}-27\)
\(27{{x}^{9}}-125{{y}^{12}}\)

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Answer:(a) \((7m + 2n)(49m^2 - 14mn + 4n^2)\); (b) \((x - 3)(x^2 + 3x + 9)\); (c) \((3x^3 - 5y^4)(9x^6 + 15x^3 y^4 + 25y^8)\)

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