x^(2)+5x-2=0

The biquadratic equation, two of whose roots are 1+i , 1-sqrt(2) is A) x^(4)-4x^(3)+5x^(2)-2x-2=0 B) x^(4)-4x^(3)-5x^(2)+2x+2=0 C) x^(4)+4x^(3)-5x^(2)+2x-2=0 D) x^(4)+4x^(3)+5x^(2)-2x+2=0

Solve 3x^(2) +5x-2le0

Solve 3x^(2)+5x-2le0 .

Is {x : x^(2) - 5x -6=0} ={2,3} ?

Find the roots of the following quadratic equations :- 2/x^2-5/x+2=0,x ne 0 .

The number of solutions of the equation 2{x}^(2)-5{x}+2=0 is (where {} denotes the fractionalpart function)

Solve: (1-x^(2))/(5x-6-x^(2))<0

The number of solutions of the equation x^(3)+2x^(2)+5x+2cosx=0 in [0,2pi] is