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Which of the following are qudratic equa...

Which of the following are qudratic equations?
(i) `x^2-x-5=0`
(ii) `y^2+4=3y-1`
(iii) `3x^2-5x+3=0`
(iv) `x-3=4x`
(v) `(y-2)(y+2)=0`
(vi) `p+3=1/(p^2)`
(vii) `3/y-4=y`.

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Verified by Experts

The correct Answer is:
Quadratic equation : (i),(ii),(iii),(v),(vii).
Not a quadratic euqation : (iv),(vi).
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TARGET PUBLICATION-QUADRATIC EQUATIONS-Additional problems for Practice : Based on practice set 2.1
  1. Which of the following are qudratic equations? (i) x^2-x-5=0 (ii) ...

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  2. Write the following equations in the form ax^2+bx+c=0. Also, find the ...

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  3. Write the following equations in the form ax^2+bx+c=0. Also, find the ...

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  4. Write the following equations in the form ax^2+bx+c=0. Also, find the ...

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  5. Write the following equations in the form ax^2+bx+c=0. Also, find the ...

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  6. Determine whether the value given against each of the qaudratic equati...

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  7. What are the roots of the quadratic equation 2x^(2) - 7 x + 6 =0 ?

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  8. Determine whether the value given against each of the qaudratic equati...

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  9. Determine whether the value given against each of the qaudratic equati...

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  10. If one root of the quadratic equation kx^(2) – 7x + 5 = 0 is 1, then f...

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  11. Find k, one of the roots of the quadratic equation kx^(2) – 7x + 12 = ...

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  12. If one of the roots of the quadratic equation x^(2) – 7x + k = 0 is 4,...

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  13. Which of the following are qudratic equations? (i) x^2-x-5=0 (ii) ...

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  14. Write the following equations in the form ax^2+bx+c=0. Also, find the ...

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  15. Write the following equations in the form ax^2+bx+c=0. Also, find the ...

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  16. Write the following equations in the form ax^2+bx+c=0. Also, find the ...

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  17. Write the following equations in the form ax^2+bx+c=0. Also, find the ...

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  18. Determine whether the value given against each of the qaudratic equati...

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  19. Determine whether the value given against each of the qaudratic equati...

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  20. Determine whether the value given against each of the qaudratic equati...

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