Respuesta :

Good evening Shalanda

(3m³ - y)(3m³ -y)
We need to simplify this
Distribute
(3m³)(3m³)+(3m³)(-y)+(-y)(3m³)+(-y)(-y)
= 9m^6 - 3m³y - 3m³y +y²
= 9m^6 -6m³y +y²

I hope that's help !