" Find the maximum or minimum of the following expression is "2x-7-5x^(2)

Find the maximum or minimum values of the following expressions i) 2x -7 – 5x^(2) ii) 3x^(2)+2x+11 iii) ax^(2)+bx+a, a,b in R, a != 0 iv) x^(2)-x+7

Find the maximum or minimum value of the quadratic expression 2x-7-5x^(2)

Find the maximum or minimum of the following expressions as x varies over R. 2x+5-3x^(2)

Find the maximum or minimum of the following expressions as x varies over R. x^(2)-x+7

Find the maximum or minimum values of the following expressions on R 2x + 5 – 3x^(2)

Find the maximum or minimum values of the following expressions on R i) 2x + 5 – 3x^(2) ii) 12x - x^(2)-32

Find the maximum or minimum of the following expressions as x varies over R. 12x-x^(2)-32

Find the maximum or minimum values of the following expressions on R i) x^(2) + 6x – 27 ii) 3x^(2) + 2x + 7 iii) x^(2) - 12x + 32 iv) 2x^(2) + 3x + 1