Suppose that the functions s and t are defined for all real numbers x as follows. s ( x = x+2 t(x)=4x2 Write the expressions for (t-s) (x) and (t's) (x) and evaluate (t+s) (2). (t - s) (xx ) = 0 ( +.5) ( xx ) = [ X ? ( + + s ) ( 2 ) = 1