# 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.$$x^2+kx+25=0$$

$$e=mc^2$$