| Class | 10 |
| Chapter | Quadratic Equations |
| Subject | Math |
| Category | MCQ |
Class 10 Math Chapter 4 MCQ Question Answer
1. Which of the following is a quadratic equation?
(A) (x+1)=(x-3)2
(B) (x+4)3 = 3x(x + 1)
(C) 4x²+5= (2x+7)2
(D) (x-2) (x+1) = (x-1) (x+3)
Answer
Ans – (A) (x+1)=(x-3)2
2. Which of the following is a quadratic equation?
(A) (x-1)(x+3) = (x-7) (x+5)
(B) (2x-1)(2x+1) = (x-2)2
(C) (x+4)3 = 3x(x + 1)
(D) 4x² + 5 = (2x+7)2
Answer
Ans – (B) (2x-1)(2x + 1) = (x-2)2
3. If the roots of the quadratic equation 2x²+kx+2=0 are equal, then the value of k is :
(A) +2
(B) ±5
(C) ±3
(D) ±4
Answer
Ans – (D) ±4
4. Choose the correct option: If the roots of the quadratic equation 3x²+kx+3=0 are equal, then the value of k is:
(A) ±6
(B) ±3
(C) ±9
(D) None of these
Answer
Ans – (A) ±6
5. The value of k for which the roots of 2x² + kx + 3 = 0 are equal, is:
(A) 0
(B) ± 24
(C) 
(D) 
Answer
Ans – (C)
6. Roots of equation 3x² + x – 4 = 0 are :
(A) 
(B) 
(C) 3,-4
(D) None of these
Answer
Ans – (B)
7. Discriminant of equation 2x² + x – 6=0 is :
(A) 49
(B) 7
(C)-12
(D) None of these
Answer
Ans – (A) 49
| Also Read | Class 10 Math NCERT Solution |
| Also Read | Class 10 Important Questions [Latest] |