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Solve the following quadratic equation b...

Solve the following quadratic equation by completing square: `z^(2)+4z-7=0`.

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The correct Answer is:
`-2+sqrt(11),-2-sqrt(11)`
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TARGET PUBLICATION-QUADRATIC EQUATIONS-Additional problems for Practice : Based on Practice set 2.3
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  7. Solve the following quadratic equation by completing square: z^(2)+4z-...

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  17. Solve the following quadratic equation by completing square: z^(2)+4z-...

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