2nd, in the top left corner put the first term and in the bottom right corner put the last term.
3rd, multiply these two terms together to get − 60 x 2 . Find two factors of − 60 x 2 that when added together they will give you the middle term 11x .
These are 15x and − 4x . Put these into the open boxes.
10 x 2
− 6
10x2
15x
−4x
−6
4th, factor the terms in each row and in each column.
2x 3 5x
−2
5th, the sum of the factors for the columns and the sum of the factors for the rows are the polynomial’s factors: (2x + 3)(5x − 2)
10x2
15x
−4x
−6