What is the extreme f(x)=-(5x^3)/3+10x^2+25x ?

The extreme f(x)=-(5x^3)/3+10x^2+25x is Minimum(-1,-40/3),Maximum(5, 500/3)

Popular >

extreme f(x)=-(5x^3)/3+10x^2+25x

extreme points

f (x) = - \frac{5 x ^{3}}{3} + 10 x^{2} + 25 x

Minimum (- 1, - \frac{40}{3}), Maximum (5, \frac{500}{3})

Solution steps

f^{'} (x) = - 5 x^{2} + 20 x + 25

Find intervals:

Decreasing

: - \infty < x < - 1,

Increasing

: - 1 < x < 5,

Decreasing

: 5 < x < \infty

Plug

x = - 1

into

- \frac{5 x ^{3}}{3} + 10 x^{2} + 25 x : - \frac{40}{3}

Minimum (- 1, - \frac{40}{3})

Plug

x = 5

into

- \frac{5 x ^{3}}{3} + 10 x^{2} + 25 x : \frac{500}{3}

Maximum (5, \frac{500}{3})

Minimum (- 1, - \frac{40}{3}), Maximum (5, \frac{500}{3})

f (x) = 8 - 3 x - 6 x^{2}

f (x) = 4 cos^{2} (x), 0 \leq x \leq π

cos (t)

f (x) = x^{4} - 32 x^{2} + 8

f (x, y) = 2 x^{3} - 5 x y^{2} + 4 y^{3}

What is the extreme f(x)=-(5x^3)/3+10x^2+25x ?
The extreme f(x)=-(5x^3)/3+10x^2+25x is Minimum(-1,-40/3),Maximum(5, 500/3)