Determine the range of the following expressions.
`(2x^(2)-6x+5)/(x^(2)-3x+2)`

Determine the range of the following expressions. (x^(2)+x+1)/(x^(2)-x+1)

Determine the range of the following expressions. ((x-1)(x+2))/(x+3)

Determine the range of the following expressions. (x+2)/(2x^(2)+3x+6)

Add the following expressions: 2x^(2), -5x^(2) - x^(2), 6x^(2)

Factorise the following expressions : 4x^3y-6x^2

Add the following expressions: x^(2)-2xy+3y^(2), 5y^(2)+3xy-6x^(2)

Express each of the following as a rational expression. (x^(2)-5x+6)/(x^(2)-9x+20)+(x^(2)-3x+2)/(x^(2)-5x+4):