Which of the following is not a quadratic equation (a)x-3/x =4 (b)3x-5x=x² (c) x+1/x=4 (d) x²-3=4x²-4x
Answers
Given :
(a)x-3/x =4 or (x - 3)/x = 4
(b)3x-5x=x²
(c) x+1/x=4 or (x + 1)/x = 4
(d) x²-3=4x²-4x
To Find : Which one is not Quadratic Equation
Solution:
Quadratic Equation is of from ax² + bx + c = 0 where a ≠ 0
(a)x-3/x =4 or (x - 3)/x = 4
x-3/x =4
=> x² - 3 = 4x
=> x² - 4x - 3 = 0
Quadratic Equation
(x - 3)/x = 4
=> x - 3 = 4x
=> 3x + 3 = 0
Not a Quadratic Equation
3x-5x=x²
=> x² + 2x = 0
Quadratic Equation
x+1/x=4 or (x + 1)/x = 4
x+1/x=4
=> x² + 1 = 4x
=> x² - 4x + 1 = 0
Quadratic Equation
(x + 1)/x = 4
=> x + 1 = 4x
=> 3x - 1 = 0
Not a Quadratic Equation
x²-3=4x²-4x
=> 3x² - 4x + 3 = 0
Quadratic Equation
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