What is the factored expression? 10(5 - 10)+2

Aline parallel to a triangle's side splits ab into lengths of x - 5 and x + 2. the other side, ac, is split into lengths of x and x + 12. what is the length of ac? a) 12 b) 24 c) 36 d)

Icould really use some with this question.

The sum of these consecutive integers is equal to 9 less than 4 times the least of the integer. find the three integers