मराठी

Which of the Following is a Quadratic Equation? - Mathematics

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प्रश्न

Which of the following is a quadratic equation? 

(a)` (x^2+1)=(2-x)^2+3`              (b)` x^3-x^2=(x-1)^3` 

(c) `2x^+3=(5+x)(2x-3)`                (d) None of these  

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उत्तर

`x^3-x^2=(x-1)^3` 

∵ `x^3-x^2=(x-1)^3` 

⇒ `x^3-x^2=x^3-3x^2+3x-1` 

⇒ `2x^2-3x+1=0`  which is a quadratic equation  

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पाठ 10: Quadratic Equations - Exercises 6

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आर. एस. अग्रवाल Mathematics [English] Class 10
पाठ 10 Quadratic Equations
Exercises 6 | Q 2
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