What is the limit as x approaches-4 of (2x^3+5x)^2 ?

The limit as x approaches-4 of (2x^3+5x)^2 is 21904

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limit as x approaches-4 of (2x^3+5x)^2

x \to - 4 lim ((2 x^{3} + 5 x)^{2})

21904

Solution steps

x \to - 4 lim ((2 x^{3} + 5 x)^{2})

Plug in the value

x = - 4

= (2 (- 4)^{3} + 5 (- 4))^{2}

Simplify

(2 (- 4)^{3} + 5 (- 4))^{2} : 21904

= 21904

x \to - 3 lim (x^{2} + 1)

x \to \infty lim (- 150)

x \to 2 lim (\frac{5}{x ^{2} - 4})

x \to 0 lim (x^{8} e^{- x^{7}})

x \to 2 lim (x^{2} ln (2))

What is the limit as x approaches-4 of (2x^3+5x)^2 ?
The limit as x approaches-4 of (2x^3+5x)^2 is 21904