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Solve the following quadratic: x^2+x-20=...

Solve the following quadratic: `x^2+x-20=0`

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The correct Answer is:
correct Answer is

If `x+5=0,x=−5` If `x−4=0,x=4`
We have,

`x^2+x−20=0`

...
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RD SHARMA-QUADRATIC EQUATIONS-Solved Examples And Exercises
  1. Solve the following quadratic: \ sqrt(2)x^2+x+sqrt(2)=0

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  2. Solve the following quadratic: \ x^2+x/(sqrt(2))+1=0

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  3. Solve the following quadratic: x^2+x-20=0

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  4. Solve the following quadratic: \ 3x^2-4x+(20)/3=0

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  5. Solve the following equation by factorization method: x^2-sqrt(2)i\...

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  6. Solve the following equation by factorization method: 3x^2+7i x+6=0

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  7. Solve the following equation by factorization method: \ x^2-(3sqrt(2...

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  8. Solve the following quadratic equation by factorization method: \ x...

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  9. Solve the following quadratic equation by factorization method: \ \...

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  10. Solve the following quadratic equation by factorization method: \ \...

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  11. Solve the following quadratic equation by factorization method: \ \...

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  12. Solve the following quadratic equation: (2+i)x^2-(5-i)x+2(1-i)=0

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  13. Solve the following quadratic equation: \ i x^2-4x-4i=0

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  14. Solve the following quadratic equation: \ x^2-(5-i)x+(18+i)=0

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  15. Solve the following quadratic equation: \ x^2-(2+i)x-(1-7i)=0

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  16. Solve the following quadratic equation: \ x^2+4i x-4=0

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  17. Solve the following quadratic equation: 2x^2+sqrt(15)i x-i=0

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  18. Solve the following quadratic equation: \ i x^2-x+12 i=0

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  19. Solve the following quadratic equation: \ x^2-(3sqrt(2)-2i)x-sqrt(2)i=...

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  20. Solve the following quadratic equation: \ 2x^2-(3+7i)x+(9i-3)=0 alpha ...

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