Evaluate: `23^3-17^3`

Explanation

let `a=23 and b= 17`
`a^3-b^3=(a-b) (a^2+ab+ b^2)`
`= (23-17) (23^2+ 23xx17+ 17^2)`
`= 6(529+421+289)`
`= 6xx1239`
`= 7434`