A) (4x- /5)^2
(4x)^2-2x4xx/5
16x^2-16x/5+5
B) (a/3-3)^2
(a/3)^2-2xa/3x3+(3)^2
3a-4a/3+9
C)(y/10-1)^2
(y/10)^2 - 2x y/10 x 1 + 1^2
10y - 2y/10 + 1
D) (6x- /6)^2
(6x)^2 - 2x 6x x /6 + (/6)^2
36x^2 - 12/6 + 6
E) (x/8-4x)^2
(X/8)^2 - 2x x/8 x 4x + (4x)^2
8x - 8x^2/8 + 16 x^2
Restul rezolva și tu =))
^=ridicare la putere
/= radical
