Question

Factorise 125 cube -64 cube

Answer 1

hope you like this image

Answer 2

125^3-64^3
a^3-b^3=(a+b)(a^2+ab+b^2)
here:a=5
b= 4
a cube -b cube =(5+4)(5^2+5*4+4^2)
=(9)(25+20+16)
=9(51)
=459