The Discriminant ($b^2-4ac$) (Nature/Number of Roots)

  1. 1
    If the following equation has 2 real distinct roots, find k. $$kx^2+3x-5=0$$
    Important lesson !
  2. 2
    If the following equation has no roots, (imaginary/complex roots), find k.$$2x^2+4x-k=0$$
  3. 3
    If the following equation has 2 real equal roots,(one root), find k.$$kx^2-5x+10=0$$
  4. 4
    If the following equation has no roots, (imaginary/complex roots), find k. $$2x^2+kx+2=0$$
    Good test question !
  5. 5
    If the following equation has 2 real distinct roots, find k. $$8x^2-kx+2=0$$
    Good test question !
  6. 6
    If the following equation has 2 real equal roots,(one root), find k.$$x^2+kx+25=0$$

$$e=mc^2$$