How many times how many times how many is equal to how many plus how many plus how many. These six numbers are required to be the same number
0 times 0 times 0 equals 0 plus 0 plus 0
Compare the size; - 2 / 1a and - 3 / 1a
There are three cases
a> 0, the latter is larger
a
(1a-1 / 4) times (1a + 1 / 4)
(1a-1 / 4) times (1a + 1 / 4) = 1 / 16 * a ^ 2-1