Nature of Roots of Quadratic Equation

• real, rational, and equal

• real, rational, and unequal

• real, irrational and unequal

• not real or imaginary

• real, rational, and equal

• real, rational, and unequal

• real, irrational and unequal

• not real or imaginary

-2x^2 - 8x - 8 = 0

• real, rational, and equal

• real, rational, and unequal

• real, irrational and unequal

• not real or imaginary

9x^2\ -6x\ +\ 1\ =\ 0\

• real, rational, and equal

• real, rational, and unequal

• real, irrational and unequal

• not real or imaginary

• no real roots or imaginary
  

• real, rational, and equal

• real, irrational, and unequal

• real, rational, and unequal

• no real roots or imaginary
  

• real, rational, and equal

• real, irrational, and unequal

• real, rational, and unequal

• 1

• 2

• 4

What is the discriminant of the given quadratic equation x^2-6x-27=0 ?

• 72

• 48

• 144

• -144

The discriminant is...

• ax² + bx + c

• b² - 4ac

• b² + 4ac

• b - 4ac

If the discriminant is equal to 0 the roots will be...

• Real, rational & equal

• Real, irrational & different

• Real, rational & different

• Non-real & different