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Choose the correct alternative from those given below each question:
If for a quadratic equation
`b^2-4ac=0`, then which of the following statements is true ?

A

The roots are real and unequal

B

The roots are real and equal

C

The roots are not real

D

The roots are irrational

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NAVNEET PUBLICATION-QUADRATIC EQUATION-EXERCISE
  1. Choose the correct alternative from those given below each question: ...

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  2. Choose the correct alternative from those given below each question: ...

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  3. Choose the correct alternative from those given below each question: ...

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

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  5. Choose the correct alternative from those given below each question: ...

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  6. Write the following quadratic equations in the standard form: 3y^2=8y...

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  7. Write the following quadratic equations in the standard form: 4z^2+7...

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  8. Write the following quadratic equations in the standard form: 5y+4=y...

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  9. Write the following quadratic equations in the standard form: 3x^2=1...

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  10. Is x=-1 a root of the quadratic equation x^2-3x-4=0?

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  11. What are the roots of the following quadratic equations? p^2-9=0

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  12. What are the roots of the following quadratic equations? x^2+3x+2=0

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  13. What are the roots of the following quadratic equations? x^2+x-6=0

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  14. What are the roots of the following quadratic equations? (x+5)(x-2)=...

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  15. For solving the following quadratic equations by completing square met...

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  16. For solving the following quadratic equations by completing square met...

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  17. For solving the following quadratic equations by completing square met...

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  18. Determine the nature of the roots if b^2-4ac=0

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  19. Determine the nature of the roots if b^2-4ac gt 0

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  20. Determine the nature of the roots if b^2-4ac lt 0

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