Book: RS Aggarwal - Mathematics
Chapter: 10. Quadratic Equations
Subject: Maths - Class 10th
Q. No. 1 of Exercise 10F
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1
Which of the following is a quadratic equation?
A quadratic equation is of the form 
i.e. of degree 2 (a ≠ 0, a, b, c are real numbers)
A. 
this is not of the form 
hence it is not quadratic equation.
B. 
This is not of the form 
hence it is not quadratic equation.
C. 
This is not of the form 
hence it is not quadratic equation.
D. 
using 
This is of the form 
i.e. of degree 2 (a ≠ 0, a, b, c are real numbers)
Hence this is a quadratic equation.
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