Question

(а+ 3)2 – 2а (3 – 4а) при а =
1
-
3

Answer 1

Ответ:

5 5/9

Объяснение:

(1/3+3)*2-2*1/3(3-4*1/3)=10/3*2-2/3*(2 3/3-1 1/3)=20/3-2/3*1 2/3=20/3-2/3*5/3=20/3-10/9=60/9-10/9=50/9=5 5/9