Hassan writes an algebraic expression with four terms. The x-term has a coefficient of 2, and the z-term has a coefficient of -1. The expression has a constant term less than zero. Which expression could he have written? 2 x z 5 minus 6 z squared 2 x minus z minus 5 2 z squared Negative 2 x minus z minus 5 2 z squared Negative 2 x z minus 5 2 z squared