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Solve the following problems: If one ro...

Solve the following problems:
If one root of the quadratic equation
`ax^2+bx+c=0` is half of the other root, show that b^2=9ac/2.

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NAVNEET PUBLICATION-QUADRATIC EQUATION-EXERCISE
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  3. Solve the following problem: The difference between the square of a n...

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  10. Construct a word problem on quadratic equatiion, such that one of its ...

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