What is the extreme y=-57.17x^2+621.83x+1089 ?

The extreme y=-57.17x^2+621.83x+1089 is Maximum(62183/11434 ,2779.88922…)

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extreme y=-57.17x^2+621.83x+1089

extreme points

y = - 57.17 x^{2} + 621.83 x + 1089

Maximum (\frac{62183}{11434}, 2779.88922 \dots)

Solution steps

f^{'} (x) = - 114.34 x + 621.83

Find intervals:

Increasing

: - \infty < x < \frac{62183}{11434},

Decreasing

: \frac{62183}{11434} < x < \infty

Plug

x = \frac{62183}{11434}

into

- 57.17 x^{2} + 621.83 x + 1089 : 2779.88922 \dots

Maximum (\frac{62183}{11434}, 2779.88922 \dots)

f (x) = x + \frac{( 1 )}{( x )}, 0.2 \leq x \leq 4

f (x, y) = ln (1 + 4 x^{2} + 6 y^{2})

f (x) = x^{2} - 6 x y + 2 y^{2} + 10 x + 2 y - 5

25 x

f (x) = x - \frac{250}{x}

What is the extreme y=-57.17x^2+621.83x+1089 ?
The extreme y=-57.17x^2+621.83x+1089 is Maximum(62183/11434 ,2779.88922…)