Find the roots of the quadratic equation: 2×2 + 3x – 9 = 0 ?
A. -3/2, -3
B. 3/2, 3
C. 3/2, -3
D. 3, -3/2
Quadratic Equations
Quadratic Equations MCQs here cover topics like Quadratic formula calculator, quadratic equation calculator, completing the square calculator, and quadratic functions. Quadratic Equation questions with answers and explanations.
Roots of the equation 3×2 – 12x + 10 = 0 are ?
A. real and equal
B. irrational and unequal
C. rational and unequal
D. complex
If the roots of a quadratic equation are 20 and -7, then find the equation ?
A. x2 + 13x + 140 = 0
B. x2 – 13x – 140 = 0
C. x2 + 13x – 140 = 0
D. x2 – 13x + 140 = 0
Sum and the product of the roots of the quadratic equation x(power 2) + 20x + 3 = 0 are ?
A. -20, 3
B. -10, -3
C. 10, 3
D. -10, 3
If the roots of the equation 2×2 – 5x + b = 0 are in the ratio of 2:3, then find the value of b ?
A. 12
B. 43
C. 3
D. 5
Sum of the squares of two consecutive positive integers exceeds their product by 91. Find the integers ?
A. 11, 12
B. 12, 13
C. 9, 10
D. 10, 11
One root of the quadratic equation x2 – 12x + a = 0, is thrice the other. Find the value of a ?
A. 12
B. 45
C. 27
D. 29
Sm of the square of the three consecutive even natural numbers is 1460. Find the numbers ?
A. 22, 24, 26
B. 24, 26, 28
C. 20, 22, 24
D. 18, 20, 22
If a and b are the roots of the equation x2 – 9x + 20 = 0, find the value of a2 + b2 + ab ?
A. 61
B. 65
C. -21
D. 1
Find the value of a/b + b/a, if a and b are the roots of the quadratic equation x2 + 8x + 4 = 0 ?
A. 14
B. 3
C. 24
D. 21