(3x-1/2)2=3x×2-0,5×2=6x-1
(5y+1/5)2=5y×2+1/5×2=10y+2/5
(-6x-5)2=-6x×2-5×2=-12x-10
(-7x-2)2=-7x×2-2×2=-14x-4
(X3-3y)2=(3x-3y)2=6x-6y
(5y-x3)2=(5y-3x)2=10y-6x
(7x+y4)2=(7x+4y)2=14x+8y
(X5-8y)2=(5x-8y)2=10x-16y
х - второе число
1/2-1/4=-2-1/4=-3/4
-5/9-1/3=-5-3/9=-8/9