Verified answer

az + bt - at - bz = (az - bz) + (bt - at) = z(a - b) + t(b - a) = z(a - b) - t(a - b) =

= (a - b)(z - t)

Ответ: (z-t)×(a-b)

Объяснение:az+bt-at-bz= a (z-t) +b (t-z)= a (z-t)-b (z-t)=(z-t)×(a-b)