(2-х)(2+х)(х-1)+х^2(х-1)

Question

(2-х)(2+х)(х-1)+х^2(х-1)

Answer 1

(2-х)(2+х)(х-1)+х²(х-1) = (х-1)((2-х)(2+х)+х²) = (х-1) (4-х²+х²) = (х-1) * 4 = 4х-4 

Comments

большое спасибо!!!