Greatest or least value of a quadratic expression by completing the square

1. A.
   5
2. B.
   15/8
3. C.
   $-15/8$
4. D.
   0

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1. A.
   $-1.5$
2. B.
   $-0.5$
3. C.
   $0.5$
4. D.
   $1.5$

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1. A.
   $\frac{15}{4}$
2. B.
   $\frac{15}{2}$
3. C.
   1
4. D.
   $\frac{4}{15}$

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1. A.
   $-0.625$
2. B.
   $-0.125$
3. C.
   0.125
4. D.
   1

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1. A.
   $-0.25$
2. B.
   $-0.50$
3. C.
   0
4. D.
   0.25

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