Question

(3x-5y)^3 +(3x-5y)^3​

Answer 1

(a+b) ³= a³+ b³ +3ab(a+b)

(a-b)³= a³-b³-3ab(a-b)

(3x-5y)³ +(3x-5y)³

{27x³- 125y³ -45x²y +45xy² }- {27x³+ 125y³ +45x²y +45xy²}

{27x³- 125y³ -45x²y +45xy²-27x³- 125y³ -45x²y +45xy²}

this solution is for only 5pionts