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Algebra | Quadratic Equation
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Questions
Which of the following equations has 3 as a root?
ক
x2\-\u00ad\7x\+\12\=\0
খ
x2\-\u00ad\5x\+\12\=\0
গ
x2\+\3x\+\12\=\0
ঘ
x2\+\3x\-\u00ad\12\=\0
Which of the following is not a quadratic equation?
ক
3x(x + 5) \u00ad11 = 2x(x -\u00ad 2) + 6
খ
4x(x + 3) + 7 = 4x(x -\u00ad 11) + 9
গ
x(x + 2) \u00ad15 = x(2x -\u00ad 5) + 11
ঘ
4x - 6x +\u00ad 9 = 0
Sum of twice a fraction and its reciprocal is 17/6. What is the fraction?
ক
4\/3
খ
5\/4
গ
3\/4
ঘ
4\/5
Sum of a fraction and thrice of its reciprocal is 73/20. What is the fraction?
ক
4\/5
খ
9\/4
গ
4\/9
ঘ
5\/4