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10th Class Mathematics Chapter 2 Theory of Quadratic Equations English Medium KPK Boards Online MCQ's MCQs With Answers
Question # 1
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1
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Question # 2
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Question # 3
The discriminant of quadratic equation is:
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b
2
-4ac
-b
2
+4ac
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Question # 4
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Question # 5
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Question # 6
Product of roots of equation 5x
2
+3x-9=0:
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Question # 7
ax
2
+bx+c=0, c is the:
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Co-efficient
Variable
Factors
Constant
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Question # 8
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Question # 9
If (x+1)(7x+1) = 0 then x is equal to:
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Question # 10
Roots of following equation are: 9x
2
-4x+1=0:
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Real, Equal
Real, Unequal
Imaginary
Irrational
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Question # 11
Product of the roots of the equation 3x
2
-5x+7=0:
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3
7
7
3
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Question # 12
The nature of roots in equation 7x
2
+8x+1=0 is:
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Rational and unequal
Irrational and unequal
Rationaland equal
Irrationaland equal
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Question # 13
If a = 2, b = -7, c = 1, then the value of b
2
-4ac is:
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37
39
41
42
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Question # 14
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Question # 15
If a = -2, b = -1 and c = -1, then discriminant is equal to:
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17
-17
-7
7
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Question # 16
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1
-1
0
2
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Question # 17
Identify the equation whose roots are imaginary and unequal:
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2x
2
-x+1=0
x
2
+8x+16=0
3x
2
+4x+2=0
x
2
-7x+7=0
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Question # 18
If b
2
-4ac > 0 and is not a perfect square, then roots are:
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Rationaland unequal
Irrationaland equal
Rationaland equal
Irrationaland unequal
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Question # 19
If a = 7, b = 8 and c = 1 then b
2
-4ac is equal to:
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33
34
35
36
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Question # 20
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Question # 21
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bc
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Question # 22
Sum of the roots =
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