Crossword on "Square Equations" (8th grade)

1. Equality containing a variable.
2. Equation of formah² + bx + с= 0, whereа, b, с- some numbers,х- variable,а 0
3. Is the condition essential?а?0?
4. What are the numbers called?а, b, с?
5. Ifa = 1, the equation is called ... .
6. If in the equationah² + bx + с = 0, a,0, b = 0orc = 0, then the equation is called ... .
7. What determines the actual roots of the quadratic equation?
8. English mathematician, who owns the term "discriminant".
9. How many roots does the equation have if D > 0?
10. How many roots does the equation have if D = 0?
11. Are there roots of a quadratic equation if D < 0?

Crossword with answers in .doc format can be