Question

QNO1.Which of following equations is a quadratic equation.
a)2x^2 + 6x + 8 = 0
b)X^2 - 6 √x+2= 0
c)X^2 – 5 √x + 4 = 0
d)X/1-3/x=x^2


QNO2.Which of the following is a solution of 2x2 - 5 x – 3 = 0
a)3
b)- 3
c)6
d)None of these


QNO3.If x = 1 is a solution of quadratic equation x2 + kx + 3 = 0 then value.
a)11
b)12
c)1
d)None of these


QNO4.Which of the following is a quadratic equation
a)X^2 + 1 + 2x = 2x – 6
b)(x – 2) (x + 1) = (x -1) (x + 3)
c)X^2 + 3x + 1 = x^2 + 4 – 4x
d)X^3 + x^2 + x + 1


QNO5If we factorize 4x2 – 12x + 9 = 0, then value of x are
a)3/2,3/2
b)-3/2,+3/2
c)-3/2,-3/2
d)None of these


plz only correct answer​

Answer 1

Answer:

1.a

2.d

3.d

4.aQNO1.Which of following equations is a quadratic equation.

a)2x^2 + 6x + 8 = 0

b)X^2 - 6 √x+2= 0

c)X^2 – 5 √x + 4 = 0

d)X/1-3/x=x^2