theorem Th8: :: POLYEQ_2:8

for a1, a2, a3, a4, a5, b1, b2, b3, b4, b5 being Real st ( for x being Real holds Polynom (a1,a2,a3,a4,a5,x) = Polynom (b1,b2,b3,b4,b5,x) ) holds
( a1 - b1 = b3 - a3 & a2 - b2 = b4 - a4 )