To rewrite the expression as powers, we just have to place one base number and one exponent number, the exponent must tell the number of factors there are, let's do it
[tex]12\cdot12\cdot12-8\cdot8\cdot1\cdot1\cdot1\cdot1=12^3-8^2\cdot1^4[/tex]Observe how the number 12 has exponent three because there are 3 factors of 12, and so on...