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Find the roots of the quadratic equations by applying the quadratic formula.(iv)`2x^2+x+4=0`

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R G PUBLICATION-QUADRATIC EQUATIONS-EXERCISE
  1. Find the roots of the quadratic equations applying the quadratic formu...

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  2. Find the roots of the quadratic equations by applying the quadratic fo...

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  3. Find the roots of the quadratic equations by applying the quadratic fo...

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  4. Find the roots of the following equations:(i)x-1/x=3,x!=0

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  5. Find the roots of the following equations:(ii) 1/(x+4)-1/(x-7)=11/30,x...

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  6. The sum of the reciprocals of Rehman's ages,(in years) 3 years ago and...

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  7. In a class test,the sum of Shefail marks in Mathematics and English is...

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  8. The diagonal of a rectangular field is 60 meters more than the shorter...

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  9. The difference of squares of two numbers is 180.The square of the smal...

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  10. A train travels 360 km at a uniform speed.If she had been 5 km/h more...

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  11. Two water taps together can fill a tank in 9(3/8) hours.The tap of lar...

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  12. An express train takes 1 hours less than a passenger train to travel 1...

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  13. Sum of the areas of two squares is 468m^2.If the difference of the the...

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  14. Find the nature of the roots of the following quadratic equations.If t...

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  15. Find the nature of the roots of the following quadratic equations.If t...

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  16. Find the nature of the roots of the following quadratic equations.If t...

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  17. Find the values of k for each of the following quadratic equations,so ...

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  18. Find the values of k for each of the following quadratic equations,so ...

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  19. Is it possible to design a rectangular mango grove whose length is twi...

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  20. Is the following situation possible?If so,determine their present ages...

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