If x is real, prove that the value of the expression `((x-1)(x+3))/((x-2)(x+4)` cannot be between `4/9` and 1.

If x is real,then the least value of the expression (x^(2)-6x+5)/(x^(2)+2x+1) is

If x is real, then the value of the expression (x^2+14x+9)/(x^2+2x+3) lies between (a) 5 and 4 (b) 5 and -4 (c) -5 and 4 (d) none of these

fx be real,prove that the value of (2x^(2)-2x+4)/(x^(2)-4x+3) cannot lie between -7 and 1

For real values of x, the value of expression (11x^(2)-12x-6)/(x^(2)+4x+2)

For real values of x the expression x^(2)-x+1hline

If x is real,show that the expression (4x^(2)+36x+9)/(12x^(2)+8x+1) can have any real value.

If x is real then the value of the expression (2x^2+4x+1)/(x^2+4x+2) is A. only +ve number B. only -ve number C. any number D. only1