Order of operations simplify by using the order of operations (31-9)-12 ÷ 2

22-6= 16 is the answer to the question

1. parenthesis (31-9)= 22

2. division 12/2= 6

3. subtraction: 22-6= 16

38+105= 143, 39+104=143, and you will find then adding the numbers on opposite sides, moving inwards yields the answer 138 every time. because of this, you’re going to multiply 138 times the number of pairs, which is 34. therefore, 34*138= 4692(i’m sorry if it’s the wrong numbers, but it’s the right concept)

Do you need with the x value for the minimum? its always between the two intercepts for a parabola