Quadratic Equation

1- Find the roots of quadratic equation: 3x2 – 7x – 6 = 0?

A. -6, 3
B. 3, -2/3
C. -5, 2
D. -9, 2

2- ind the roots of quadratic equation: x2 + x – 42 = 0?

A. -6, 7
B. -8, 7
C. 14, -3
D. -7, 6

3- Find the roots of quadratic equation: 2x2 + 5x + 2 = 0?

A. -2, -1/2
B. 4, -1
C. 4, 1
D. -2, 5/2

4-I. a2 – 13a + 42 = 0,
II. b2 – 15b + 56 = 0 to solve both the equations to find the values of a and b?

A. If a > b
B. If a ≥ b
C. If a < b
D. If a ≤ b.

5- I. a3 – 988 = 343,
II. b2 – 72 = 49 to solve both the equations to find the values of a 0

A. If a > b
B. If a ≥ b
C. If a < b
D. If a ≤ b

6- I. 9a2 + 18a + 5 = 0,
II. 2b2 + 13b + 20 = 0 to solve both the equations to find the values of a and b?

A. If a > b
B. If a ≥ b
C. If a < b
D. If a ≤ b

7- I. x2 + 11x + 30 = 0,
II. y2 + 15y + 56 = 0 to solve both the equations to find the values of x and y?

A. If x < y
B. If x > y
C. If x ≤ y
D. If x ≥ y

8-I. x2 + 3x – 18 = 0,
II. y2 + y – 30 = 0 to solve both the equations to find the values of x and y?

A. If x < y
B. If x > y
C. If x ≤ y
D. If x ≥ y
E. If x = y or the relationship between x and y cannot be established.

9-I. x2 + 9x + 20 = 0,
II. y2 + 5y + 6 = 0 to solve both the equations to find the values of x and y?

A. If x < y
B. If x > y
C. If x ≤ y
D. If x ≥ y

10- I. x2 – x – 42 = 0,
II. y2 – 17y + 72 = 0 to solve both the equations to find the values of x and y?

A. If x < y
B. If x > y
C. If x ≤ y
D. If x ≥ y
E. If x = y or the relationship between x and y cannot be established.