Quadratic Equations Mcqs
Q.1: Find the roots of the quadratic equation: x2 + 2x 15 = 0?=
A. -5, 3
B. 3, 5
C. -3, 5
D. -3, -5
Q.2: Find the roots of the quadratic equation: 22 + 3x 9 = 0?>
A. 3, -3/2
B. 3/2, -3
C. -3/2, -3
D. 3/2, 3
Q.3: The roots of the equation 3x2 12x + 10 = 0 are?3
A. rational and unequal
B. complex
C. real and equal
D. irrational and unequal
Q.4: If the roots of a quadratic equation are 20 and -7, then find the equation?K
A. x2 + 13x 140 = 0
B. x2 13x + 140 = 0
C. x2 13x 140 = 0
D. x2 + 13x + 140 = 0
Q.5: The sum and the product of the roots of the quadratic equation x(power 2) + 20x + 3 = 0 are?\
A. 10, 3
B. -10, 3
C. -20, 3
D. -10, -3
Q.6: If the roots of the equation 2x2 5x + b = 0 are in the ratio of 2:3, then find the value of b?b
A. 3
B. 4
C. 5
D. 6
Q.7: The sum of the squares of two consecutive positive integers exceeds their product by 91. Find the integers?k
A. 9, 10
B. 10, 11
C. 11, 12
D. 12, 13
Q.8: One root of the quadratic equation x2 12x + a = 0, is thrice the other. Find the value of a?`
A. 29
B. 27
C. 28
D. 7
Q.9: The sum of the square of the three consecutive even natural numbers is 1460. Find the numbers?^
A. 18, 20, 22
B. 20, 22, 24
C. 22, 24, 26
D. 24, 26, 28
Q.10: If a and b are the roots of the equation x2 9x + 20 = 0, find the value of a2 + b2 + ab?\
A. -21
B. 1
C. 61
D. 21

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