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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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9
7
5
3
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Question # 2
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1
-1
0
2
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Question # 3
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Question # 4
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4
3
1
0
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Question # 5
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 # 6
Product of cube roots of unity is:
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0
1
-1
3
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Question # 7
The nature of the root of equation x
2
-5x+5=0
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Rationaland equal
Irrationaland unequal
Irrationaland equal
Rationaland unequal
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Question # 8
The discriminant of 2x
2
-7x+1= 0 is:
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41
45
43
47
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Question # 9
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Question # 10
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 # 11
Roots of the equation 4x
2
-5x+2=0 are:
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Irrational
Imaginary
Rational
None of these
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Question # 12
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Question # 13
The discriminant of quadratic equation is:
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b
2
-4ac
-b
2
+4ac
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Question # 14
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214
256
273
296
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Question # 15
The nature of the roots of equation ax
2
+bx+c=0, is determined by:
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Sum of the roots
Product of the roots
Synthetic division
Discriminant
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Question # 16
If b
2
-4ac < 0, then roots are:
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Unreal
Imaginary
Real
Unequal
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Question # 17
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 # 18
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 # 19
The nature of roots depends on the value of:
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-b+4ac
b
2
+4c
b
2
-4ac
-b+4ac
2
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Question # 20
Sum of the roots =
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Question # 21
If (x+1)(7x+1) = 0 then x is equal to:
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Question # 22
Product of roots of equation 5x
2
+3x-9=0:
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