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Quadratic Equations

Which of the ...

Question

Which of the following are quadratic equations:

1}x^2+1/x^2=x^2 ; (x#0)
2}x^2+1/ x^2=2 ; (x#0)
3}7x=2x^3

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Solution

Dear student,

in the first question the sides are not equal so there is no sokution for the question

The second equation can be written in the form So it isin the form of quadratic equation

In the third question the the heighest degree of the equation is 3 not 2, in a quadratic eqn heighest degree is 2

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x^{2} + 2 x + 1 = (4 - x)^{2} + 3

Question 1(ii)
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x^{2} - 3 x - \sqrt{x} + 4 = 0

x - \frac{6}{x} = 3

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