Which of the following are quadratic equations? `x^2-6x+4=0` (ii) `2x^2-7x=0`

Which of the following are quadratic equations? (i) x^2-6x+4=0 (ii) 2x^2-7x=0

Which of the following are quadratic equations? x^(2)+2x+11=0

Which of the following are quadratic equations? x^(2)+2x+11=0

Which of the following are quadratic equations? x^2+6x-4=0 (ii) sqrt(3)x^2-2x+1/2=0 (iii) x^2+1/(x^2)=5

Which of the following are quadratic equations? x^(2)+6x-4=0( ii) sqrt(3)x^(2)-2x+(1)/(2)=0 (iii) x^(2)+(1)/(x^(2))=5

Which of the following are quadratic equations? x^2+2sqrt(x)-3=0 (ii) 3x^2-4x+2=0 (iii) 2x^2-2x+4

Which of the following are quadratic equations? x^(2)+2sqrt(x)-3=0 (ii) 3x^(2)-4x+2=2x^(2)-2x+4

Which of the following are quadratic equations? 3x^2-5x+9=x^2-7x+3 (ii) x+1/x=1 (iii) x^2-3x=0

Which of the following are quadratic equations? 3x^(2)-5x+9=x^(2)-7x+3 (ii) x+(1)/(x)=1( iii) x^(2)-3x=0

Write the discriminant of the following quadratic equations: 2x^2-5x+3=0 (ii) x^2+2x+4=0