Question

factorise each of the following using identities 8^3-(2-y)^3

Answer 1

8^3-(2-y)^3. ={8-(2-y)}{8^2+(2-y)^2+8(2-y)}

={y+6}{64+4+y^2-4y+16-8y}

={y+6}{84+y^2-12y}

{y+6}{y^2-12y+84}

Hope you understood!!