" ii."(2)/(x^(2))-(5)/(x)+2=0

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

Find the roots of the following quadratic equations by factorisation method : (i) 2x^(2)+(5)/(3)x-2=0 (ii) (2)/(5)x^(2)-x-(3)/(5)=0 (iii) 3sqrt2x^(2)-5x-sqrt2=0 (iv) 3x^(2)+5sqrt5x-10=0 (v) 21x^(2)-2x+(1)/(21)=0

Determine the nature of the roots of the following quadratic equations: 2x^(2)-3x+5=0 (ii) 2x^(2)-6x+3=0 (iii) (3)/(5)x^(2)-(2)/(3)x+1=0

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

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

Find the roots of the following quadratic equations by factorisation: (i) sqrt2x^(2)+7x+5sqrt2=0 (ii) 2x^(2)-x+(1)/(8)=0

Solve the following equations : (i) 2x^(2)-(3+7i)x-3+9i=0 (ii) (2+i)x^(2)-(5-i)x+2(1-i)=0

Solve : (i) (x^(2)-x)^(2)+5(x^(2)-x)+4=0 (ii) (x^(2)-3x)^(2)-16(x^(2)-3x)-36=0

Find the nature of the roots of the following quadratic equations: (i) 2x^(2)-8x+5=0" "(ii)" "3x^(2)-2sqrt(6)x+2=0 (iii) 5x^(2)-4x+1=0" "(iv)" "5x(x-2)+6=0 (v) 12x^(2)-4sqrt(15)x+5=0" "(vi)" "x^(2)-x+2=0