x2 – 2x + 3 = 0 is a _________.

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RRB Group D Previous Year Paper (Held on: 26 Aug 2022 Shift 2)
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  1. Quadratic equation
  2. Quadratic polynomial
  3. Cubic Equations
  4. Cubic polynomials

Answer (Detailed Solution Below)

Option 1 : Quadratic equation
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Detailed Solution

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Given:

x2 – 2x + 3 = 0

Formula used:

A quadratic equation is of the form ax2 + bx + c = 0

Calculations:

Comparing x2 – 2x + 3 = 0 with ax2 + bx + c = 0

⇒ a = 1, b = -2, c = 3

Since the highest power of x is 2, it is a quadratic equation.

∴ The correct answer is option 1.

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