2. 7 ÷ 213. 5 ÷ 304. 2 ÷ 165. 4÷ 366. 9 ÷ 457. 6 ÷ 368. 3 ÷ 369. 5 ÷ 5010. 8÷ 4811. 7 ÷ 2812. 2 ÷ 2613. 6 ÷ 18answer this questions so i can remember it

(a) (8%) compute the probability of an even integer among the 100 integers 1! , 2! , 3! , until 100! (here n! is n factorial or n*(n-1)*(n-2) *… 1) (b) (16%) compute the probability of an even integer among the 100 integers: 1, 1+2, 1+2+3, 1+2+3+4, …., 1+2+3+… + 99, and 1+2+3+… + 100

Hi my sisters and brothers can tell me the answer because i don’t understand the question

Which expression is the factorization of x^2+10+21