Respuesta :
1 Distribute
-(2{y}^{4}-8y)−(2y4−8y)
2 Simplify brackets
-2{y}^{4}+8y−2y4+8y
-2y^4+8y
-(2{y}^{4}-8y)−(2y4−8y)
2 Simplify brackets
-2{y}^{4}+8y−2y4+8y
-2y^4+8y