Q1. A quadratic equation is an equation of the form:
Q2. x² + 4x + 4 = 0 has roots:
Q3. Roots of x² – 2x – 8 = 0 are:
Q4. The graph of y = ax² (a < 0) opens:
Q5. Quadratic equation ax² + bx + c = 0 has real roots when:
Q6. The graph of y = ax² (a > 0) opens:
Q7. Quadratic formula gives roots as:
Q8. Solution of x² – 25 = 0 is:
Q9. A quadratic equation can have at most:
Q10. The equation x² – x = 0 has roots: