10th class Math Unit 1 MCQs
Chapter 1 MCQs 10th Class Math
Quadratic Equations:
1. Standard form of quadratic equation is:
a. ax2=bX, a = 0
b. bx + c = 0 , b = 0
c. ax2 = 0 , a = 0
d. ax2 + bx + c = 0 , a = 0
2. The number of terms in a standard quadratic equation a x2+bx+c = 0 is:
a. Three
b. One
c. Four
d. Two
3. The number of methods to solve a quadratic equation is:
a. Three
b. One
c. Four
d. Two
4. The quadratic formula is:
a. x = -b +_ b2 + 4ac
b. x = -b+_ b2 – 4ac
c. x = b +_ b2 + 4ac
d. x = b +_ b2 – 4ac
5. Two linear factors of x2−15x+56 are:
a. (x – 8) (x – 7)
b. (x + 8) (x – 7)
c. (x + 8) (x – 7)
d. (x – 8) (x + 7)
6. An equation, which remains unchanged when x is replaced by 1/x is called a/an.
a. Radical equation
b. Exponential equation
c. Reciprocal equation
d. None of these
7. An equation of the type 3x+32 −x+6 = 0 is a/an:
a. Reciprocal equation
b. Exponential equation
c. Radical equation
d. None of these
8. The solution set of equation 4×2−16= 0 is:
a. {±2}
b. {±4}
c. {2}
d. {4}
9. An equation of the form 2×4−3×3+7×2−3x+2 = 0 is called a/an:
a. Exponential equation
b. Reciprocal equation
c. Radical equation
d. None of these
10. Solution set of equation 5×2−125 = 0 is:
a. {−5}
b. {5}
c. {±5}
d. {10}
11. e roots of x2+9x+8 = 0 are:
a. -1,-8
b. -1,+8
c. +1,-8
d. +1,+8
12. In a x2+bx+c = 0 the co-efficient of x is:
a. c
b. a
c. d
d. b
13. The solution set of 5×2 = 30x is:
a. {5,6}
b. {0,6}
c. {5,7}
d. {0,9}
14. Factor of 3×2−7x−20= 0 are:
a. (x-4) (3x+5)
b. (x-4) (3x+5)
c. (x+4) (3x+5)
d. (x+4) (3x-5)
15. In 3×2+4x = 5 the co-efficient of x is:
a. 5
b. 3
c. 1
d. 4
16. An equation of type 3x+32 −x+6 = 0 is a/an ……… equation:
a. Reciprocal
b. Radical
c. Linear
d. Exponential
17. In 2+9x = 5×2 the value of c is:
a. 9
b. -2
c. 5
d. 2
18. Factors of x2−x−2 = 0 are:
a. (x-1)(x-2)
b. (x-1)(x+1)
c. (x+1)(x-2)
d. (x+1)(x-2)
19. Pure quadratic equation is:
a. 4{x^2} = 7
b. {x^2} – 7x + 6 = 0
c. x = 16
d. 4x + 5 = 0
20. In a x2+bx+c = 0 the co-efficient of x is:
a. c
b. a
c. d
d. b
21. If a=0 in a x2+bx+c = 0 then equation reduce to a/an:
a. Quadratic equation
b. Linear equation
c. Both A and B
d. Pure quadratic equation
22. Solution set of equation 25×2−1 = 0 is ………:
a. ± 1/3
b. {±1}
c. ± 1/2
d. ± 1/5
23. In a x2+bx+c the constant term is:
a. c
b. a
c. d
d. b
24. In −b ± b2−4ac/ 2a the value of a is:
a. <0
b. =0
c. >0
d. ≠ 0
25. A solution of equation which does not satisfy the equation is called a/an:
a. Imaginary root
b. Real root
c. Unequal root
d. Extraneous
26. The roots of 5×2−9x−2 = 0 are:
a. − 1/5 , 2
b. -1/ 5, −2
c. 1/5 ,−2
d. 1/5 , 2
27. In 2+9x = 5×2 the value of a is:
a. 5
b. 2
c. 9
d.-5
28. (x+3)2 = x2+6x+9 is a ……… equation.
a. Quadratic
b. Linear
c. None of these
d. Pure quadratic
29. What is the degree of a quadratic equation?
a. 3
b. 1
c. 4
d. 2
30. Solution set of 5×2−25= 0 is ………:
a. {-5}
b. {5}
c. {±5}
d. {10}
31. An equation of the form 2×4−3×3+7×2+2x−2 = 0 is called a/an:
a. Radical equation
b. Reciprocal equation
c. Exponential equation
d. Variable equation
32. Pure quadratic equation is:
a. 5x2−7 = 2x
b. x2−3x = 0
c. x2 = 7
d. x2+4x = 8
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