5/6aa+1/3a-0,6aa+a*0,1a

Question

5/6aa+1/3a-0,6aa+a*0,1a

Answer 1

= 5/6 а^2 + 1/3a - 0,6a^2 + 0,1a^2 = 
= 5/6a^2 + 1/3a - 3/5a^2 + 1/10a^2 =
= 25/30 a^2 + 10/30a -18/30a^2 + 3/30a^2 =
= 10/30a^2 + 10/30a = = 1/3a^2 + 1/3a = 1/3a(a + 1)