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the expression 2x ^2 + 4x +7 has mi...

the expression ` 2x ^2 + 4x +7` has minimum value m at `x= alpha ` . The ordered pair `( alpha , m) ` is

A

(1, -5)

B

(-1, -5)

C

(-1,5)

D

(1, 5)

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The correct Answer is:
C
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AAKASH SERIES-QUADRATIC EQUATIONS & EXPRESSIONS-PRACTICE EXERCISE
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