Quadratic Equations 1

Factor the expression: x^2 - 5x + 6

• (x - 1)(x - 6)

• (x + 2)(x + 3)

• (x - 4)(x - 2)

• (x - 2)(x - 3)

The roots of the quadratic equation x^2-6x+9=0 using factorisation are:

• 3,3

• -3,3

• -3,3

• 6,9

Solve by factorizing: 2x^2 -x+ 1/8 = 0

• 1/4

• 1/3

• -1/4

• -1/3

The zeroes of the polynomial p(x)=x^2+4x+3 are given by

• 1,3

• -1,3

• 1,-3

• -1,-3

The quadratic equation has degree

• 0

• 1

• 2

• 3

The roots of the equation 7x² + x – 1 = 0 are

• real and distinct

• real and equal

• not real

• none of these

The general form of a quadratic equation is:

• ax^2+bx+c=0
  

• ax+bx^2+c=0
  

• x^2+bx+c=0
  

• ax^2+b+c=0
  

What is a quadratic equation’s discriminant?

• 
  
  
  b^2+4ac
  

• 
  2b−4ac
  

• 
  b^2−4ac
  

• 
  a^2−4bc
  

The quadratic equation 3x^2−5x+2=0 has:

• no real roots

• two real and equal roots

• two real and distinct roots

• one real and one complex root

The roots of quadratic equation 2x² + x + 4 = 0 are:

• Positive and negative

• Both positive

• Both negative

• No real roots