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Class 9MathematicsExploring Algebraic IdentitiesFactorisationHard
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How can (64x^3+125y^3+216z^3-180xyz) be written?

Answer and explanation

Correct answer: ( (4x+5y+6z)(16x^2+25y^2+36z^2-20xy-30yz-24xz) )

It is ( (4x)^3+(5y)^3+(6z)^3-3(4x)(5y)(6z) ). Exam tip: apply the identity (a^3+b^3+c^3-3abc).

Related tags

Cubic IdentityThree VariablesAdvanced FactorisationFactorisationExploring Algebraic IdentitiesMathematicsClass 9 Mcq
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