@Thỏ
$\frac{$97^{3}$ + $83^{3}$}{180}$ - `97` . `83`
= [(`97` + `83`)($97^{2}$- `97` . `83` + $83^{2}$)] : `180` - `97` . `83`
= [`180`. ($97^{2}$ - `97` . `83` + $83^{2}$)] : `180` - `97` . `83`
= $97^{2}$ - `97` . `83` + $83^{2}$ - `97`
= $(97 - 83)^{2}$
= $14^{2}$ = `196`