What is the maximum or minimum value of the expression 2x - 3x² + 7?

minimum of 22/3

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minimum of 47/8

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maximum of 22/3

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maximum of 47/8

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Solution

The correct option is C
maximum of 22/3

To find maximum or minimum value of a quadratic expression you always bring x terms within a perfect square 2x – 3x²+7

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Similar questions

2 x - 7 - 5 x^{2}

2 x - 7 - 5 x^{2}

f (x) = - 3 x^{2} + 9 x

f (x) = \frac{x^{2} + 2 x + 1}{x^{2} + 2 x + 7}

- 5 x^{2} + 2 x + 3

\frac{17}{5}

3 x^{2} - 7 x + 9

\frac{59}{6}

x = - \frac{7}{6}

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