We know that the first element of the array is a[0], the second element is a[1], and so on.
The subscript that specifies single elements of an array is an integer expression written/denoted in square brackets. The elements of a 2D array are arranged in rows and columns.
We have 6y² + 13y - 8. We can rewrite this as 6x² + 16x - 3x - 8. Grouping terms we get 2x(3x + 8) - (3x + 8) and since both terms have the common factor of (3x + 8) the answer is (3x + 8)(2x - 1).
