What should be added to `3x^2+4` to get `9x^2-7?`
(a)`6x^2-11\ ` (b) `6x^2+11` (c)`12 x^2-11` (d) `12 x^2+11`

What should be added to (-7)/9\ to get 2? (a) (11)/9\ (b) (-11)/9 (c) (-25)/9 (d) (25)/9

Factorise:(i) 12 x^2-7x+1 (ii) 2x^2+7x+3 (iii) 6x^2+5x-6 (iv) 3x^2-x-4

The number of common chords of the parabolas x=y^2-6y+11 and y=x^2-6x+11 is 1 (b) 2 (c) 4 (d) 6

Let alpha=(-1+isqrt3)/2 . If a =(1 +alpha^2)underset(k-0)overset(100)(Sigma)alpha^k and b = underset(k-0)overset(10)(Sigma)alpha^(6k) , , then a and b are the roots of the quadratic equation : A. x^2 - 102x + 11 =0 B. x^2 + 12x + 11 =0 C. x^2 - 12 x - 11 =0 D. x^2 - 12 x+ 11=0

Solve the equation 6x^3 -11 x^2 +6x -1=0

The number of common chords of the parabolas x=y^2-6y+11 and y=x^2-6x+11 is (a) 1 (b) 2 (c) 4 (d) 6

The term independent of x in the product (4 + x + 7x^2)(x-3/x)^11 is (a) 7*"^(11)C_(6) (b) (3)^6*"^(11)C_(6) (c) 3^(5)*"^(11)C_(5) (d) -12*2^(11)

Divide: x^3-6x^2+11 x-6\ b y\ \ x^2-4x+3

Divide: x^3-6x^2+11 x-6\ b y\ \ x^2-4x+3

The equation of the circle which, passes through the point (-2, -3) and has its centre on the negative direction of x-axis and is of radius 5 units is (i) x^(2) + y^(2) + 12 x + 11 = 0 (ii) x^(2) + y^(2) - 12 x + 11 = 0 (iii) x^(2) + y^(2) - 12 x - 11 = 0 (iv) x^(2) + y^(2) + 12 x - 11 = 0