Question

упростите выражение:
5c²d-2c²d+c³d+2c³d

Answer 1

5c^2d-2c^2d+c^3d+2c^3d=(5c^2d-2c^2d)+(c^3d+2c^3d)=3c^2d+3c^3d

Answer 2

    5c²d-2c²d+c³d+2c³d =
= (5c²d-2c²d)+(c³d+2c³d) = 
= 3c²d+3c³d = 3с²d(1+c)