`4x^(2)-4x-80=0`

Solve sqrt(x-2)(x^(2)-4x-5)=0

Determine the nature of roots of given quadratic equation ( i x^(2)+x+1=0 (ii) 4x^(2)-4x+1=0

Examine the nature of the roots of the equations (i) 2x^(2)+2x+3=0 (ii) 2x^(2)-7x+3=0 (iii) x^(2)_5x-2=0 (iv) 4x^(2)-4x+1=0

0.1^(4x^(2)-2x-2)<=0.1^(2x-3)

Draw the graph of y=x^(2)-4x+4 and hence solve x^(2)-4x+4=0

4x^2-7x-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

Write the discriminant of the following quadratic equations: x^(2)-4x+2=0 (ii) 3x^(2)+2x-1=0 (iii) x^(2)-4x+a=0

If the discriminant of 3x^(2)+2x+a=0 is double the discriminant of x^(2)-4x+2= 0 , find 'a' ?