Answer:
[tex]=27a^3b^3+54a^2b^2c+36abc^2+8c^3[/tex]
Step-by-step explanation:
[tex](3ab+2c)^3[/tex]
[tex]=(3ab+2c)[/tex] × [tex](3ab+2c)[/tex] ×
[tex]=(3ab+2c)(9a^2b^2+12abc+4c^2)[/tex]
[tex]=(3ab)(9a^2b^2)+(3ab)(12abc)+(3ab)(4c^2)+(2c)(9a^2b^2)+(2c)(12abc)+(2c)(4c^2)[/tex]
[tex]=27a^3b^3+36a^2b^2c+12abc^2+18a^2b^2c+24abc^2+8c^3[/tex]
[tex]=27a^3b^3+54a^2b^2c+36abc^2+8c^3[/tex]
hope this helps....
