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? (i) (x+1/x)^2=3(x+1/x) (ii) x^2-3x=0

Which of the following are quadratic equations? x+(3)/(x)=x^(2)( ii) x^(2)+(1)/(x^(2))=2

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

Which of the following are quadratic equations? (i) x-3/x=x^2 (ii) 2x^2-sqrt(3)x+9=0 (iii) x^2-2x-sqrt(x)-5=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+2sqrt(x)-3=0 (ii) 3x^2-4x+2=0 (iii) 2x^2-2x+4

Which of the following are quadratic equations? (i) x^(2)-5x+3=0 (ii) 2x^(2)-3sqrt(2)x+6=0 (iii) 3x^(2)-2sqrtx+8=0 (iv) 2x^(2)-3=0 (v) x+(1)/(x)=x^(2) (vi) x^(2)+(1)/(x^(2))=4(1)/(4)

Which of the following are quadratic equations? (i) x^(2)8x+12=0 (ii) x+(1)/(x)=5 (iii) x+(5)/(x)=x^(2) (iv) x^(2)-5sqrtx+7=0 (v) x^(2)-5x-sqrtx+4=0 (vi) x^(2)-(1)/(x^(2))=4 (vii) 5x^(2)-7x=3x^(2)-7x+3 (viii) (1)/(4)x^(2)+(7)/(6)x-2=0

Which of the following are quadratic equations? (i) x^(2)8x+12=0 (ii) x+(1)/(x)=5 (iii) x+(5)/(x)=x^(2) (iv) x^(2)-5sqrtx+7=0 (v) x^(2)-5x-sqrtx+4=0 (vi) x^(2)-(1)/(x^(2))=4 (vii) 5x^(2)-7x=3x^(2)-7x+3 (viii) (1)/(4)x^(2)+(7)/(6)x-2=0

which of the following are quadratic equations? "(i) " x-5/x=3x-9 " (ii) " (x+3)(x-4)=0 "(iii) " 5/x-3=x^(2) " (iv) " n^(3)-n+4=n^(3) (v) x-3=4x^(2)