During the summer, Dwayne works on his uncle's dairy farm. One of Dwayne's many chores is to load bales of hay onto a wagon and haul them from the field into the barn. He can haul 7 bales of hay in each wagon load.

Talia grouped the terms and factored out the gcf of the groups of the polynomial 15x2 – 3x – 20x + 4. her work is shown below. (15x2 – 3x) + (–20x + 4) 3x(5x – 1) + 4(–5x + 1) talia noticed that she does not have a common factor. what should she do?