For what values of x, the expression `x^(2)-5x-14` is positive ?

For what values of x , the expression x^2 - 5x + 6 is positive ?

For what values of x the expression 2x^2 - 10x - 28 is positive?

For what value of x, the following expressions are positive ? x^(2)-5x+14

For what value of x, the following expressions are positive ? 4x-5x^(2)+2

For what value of x, the following expressions are positive ? x^(2)-5x+6

For what values of x, the expression 2x - 7 - 5x ^(2) is maximum and also find the maximum value.

For what value of x, the following expressions are positive ? 3x^(2)+4x+4

For what value of x, the following expressions are positive ? 3x^(2)+4x+4

If a and b are the maximum and minimum values of the quadratic expressions 1-2x-5x^(2) and x^(2)-2x+5 respectively then the set of the all values of x for which the expression 5ax^(2)+bx+7 is positive