(100-1)(100-4)(100-9)...(100-121)=? Помогите !!!

Question

(100-1)(100-4)(100-9)...(100-121)=? Помогите !!!

Answer 1

=(100-1)(100-4)...(100-81)(100-100)(100-121)=0*(100-1)*...*(100-121)=0