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Using quadratic formula, solve the following equation for `x:` `a b x^2+(b^2-a c)x-b c=0`

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VK GLOBAL PUBLICATION-QUADRATIC EQUATIONS-LONG ANSWER QUESTIONS
  1. Using quadratic formula, solve the following equation for x: a b x^2+...

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  2. Find the values of p for whch the equadratic equation (2p+1)x^2-(7p+2)...

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  3. (x-4)/(x-5)+(x-6)/(x-7)=10/3

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  4. The sum of the reciprocals of Rehmans ages, (in years) 3 years ago an...

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  5. The difference of two numbers is 5 and the difference of their recipro...

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  6. The sum of the squares of two consecutive odd numbers is 394. Find ...

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  7. The sum of two numbers is 15. If the sum of their reciprocals is (3)/(...

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  8. In a class test, the sum of Shefali's marks in Mathematics and English...

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  9. A train travels 360 km at a uniform speed. If the speed had been 5 ...

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  10. Sum of the areas of two squares is 468\ m^2. If the difference of thei...

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  11. Seven years ago Varuns age was five times the square of Swatis age. ...

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  12. A passenger train takes 2 hours less for a journey of 300 km if its...

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  13. A two digit number is such that the product of its digits is 18. When ...

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  14. If twice the area of a smaller square is subtracted from the area of a...

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  15. If Zeba were younger by 5 years than what she really is, then the squa...

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  16. A motor boat whose speed is 18 km/h m still water takes 1 hour more...

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  17. A natural number when increased by 12, equals 160 times its reciprocal...

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  18. The sum of the squares of two consecutive multiples of 7 is 637. Find ...

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  19. Solve for x :1/(x+1) +2/(x+2)=4/(x+4)

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  20. The positive value of k for which the equation x^2+k x+64=0 and x^2-8x...

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