# CBSE Class 9 Answered

**factorise 125x^3+27y^3**

Asked by chintanasati.04ff2 | 13 Jul, 2021, 17:01: PM

Expert Answer

###
125x^{3 } + 27y^{3}
= (5x)^{3} + (3y)^{3}
= (5x + 3y)(25x^{2} - 15xy + 9y^{2}) ............ a^{3} + b^{3} = (a + b) (a^{2} - ab + b^{2})

^{3 }+ 27y

^{3}

^{3}+ (3y)

^{3}

^{2}- 15xy + 9y

^{2}) ............ a

^{3}+ b

^{3}= (a + b) (a

^{2}- ab + b

^{2})

Answered by Yasmeen Khan | 13 Jul, 2021, 21:36: PM

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