What is the global 7x^2-9x-5 ?

The global 7x^2-9x-5 is Global Minimum(9/14 ,-221/28)

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global 7x^2-9x-5

global extreme points

7 x^{2} - 9 x - 5

Global Minimum (\frac{9}{14}, - \frac{221}{28})

Solution steps

Find the extreme points:

Minimum

(\frac{9}{14}, - \frac{221}{28})

Find the function range:

[- \frac{221}{28}, \infty)

Verify extreme points are global points

Global Minimum (\frac{9}{14}, - \frac{221}{28})

sin (\frac{2}{x})

\frac{3 x - 3}{2 x - 2}

f (x) = \frac{3 x - 7}{x + 1}

\frac{x ^{4}}{x - 1}

(3.5) (2.7)

What is the global 7x^2-9x-5 ?
The global 7x^2-9x-5 is Global Minimum(9/14 ,-221/28)