$(3$x$^(2)+5$x$-3)+($x$^(2)-5$x$+1)$ Which two of the following statements are true about the simplified form of this expression? The simplified form of the expression is $4$x$^(2)-10$x$-2.3$x$^(2)$ and x$^(2)$ combine to equal $3$x$^(4).$ The constant in the simplified form is $-2.5$x and $-5$x combine to equal $0$x or $0.$