Question

Factorise:(x³ + 125y³)​

Answer 1

$x^{3}+125y^{3}$

Formula for the sum of cubes = $(a+b)(a^{3} +b^{3} -ab)$

here,

a=x and b=5y

hence by applying it on the formula we get,

$(x+y)(x^{2} +25y^{2} -5xy)$