## Assertion Reason Questions for Class 10 Maths Chapter 4 Quadratic Equations

**Directions:**

(a) If both Assertion and Reason are correct and Reason is the correct explanation of Assertion.

(b) If both Assertion and Reason are correct, but Reason is not the correct explanation of Assertion.

(c) If Assertion is correct but Reason is incorrect.

(d) If Assertion is incorrect but Reason is correct.

**Q.1. Assertion:** If one root of the quadratic equation 6x^{2} – x – k = 0 is 2/3, then the value of k is 2.**Reason:** The quadratic equation ax^{2} + bx + c = 0, a ≠ 0 has almost two roots.

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Answer:
**Q.2. Assertion:** (2x – 1)^{2} – 4x^{2} + 5 = 0 is not a quadratic equation.**Reason: **An equation of the form ax^{2} + bx + c = 0, a ≠ 0, where a, b, c ∈ R is called a quadratic equation.

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Answer:
**Q.3. Assertion:** The roots of the quadratic equation x^{2} + 2x + 2 = 0 are imaginary**Reason:** If discriminant D = b^{2} – 4ac < 0 then the roots of quadratic equation ax^{2} + bx + c = 0 are imaginary.

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Answer:
**Q.4. Assertion:** 3x^{2} – 6x + 3 = 0 has repeated roots.**Reason:** The quadratic equation ax^{2} + bx + c = 0 have repeated roots if discriminant D > 0.