(a-b)2=a2-2ab+b2
(8-b)2=±±b±b2
(a-1)2=±a2±a±
(8a-b)2=±*2±**b±b2
(a-1b)2=±a2±*a*+*2
(8-t)2=±±16t±t2
(8-t)*(8-t)=±±16t±t2
(t-8)*(8-t)=±t2±16t±
(8-z)*(8-z)=±±z±z2
(x-8)*(8-x)=±x2±x±
(8ax-bz)*(8ax-bz)=±*()2±**bz±(bz)2
(vt-8up)*(8up-vt)=±(vt)2±*vt*±*()2
(8-z)*(8-z)=±±z±z2
(8-x)*(x-8)=±x2±x±
(8x-bz2)*(8x-bz2)=±*()2±**bz2±(bz2)2
(8dp-t)*(t-8dp)=±t2±*t*±*()2