What is the limit as x approaches-1 of 8x^4-3x^3+7x ?

The limit as x approaches-1 of 8x^4-3x^3+7x is 4

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limit as x approaches-1 of 8x^4-3x^3+7x

x \to - 1 lim (8 x^{4} - 3 x^{3} + 7 x)

4

Solution steps

x \to - 1 lim (8 x^{4} - 3 x^{3} + 7 x)

Plug in the value

x = - 1

= 8 (- 1)^{4} - 3 (- 1)^{3} + 7 (- 1)

Simplify

8 (- 1)^{4} - 3 (- 1)^{3} + 7 (- 1) : 4

= 4

\frac{d}{d x} (sin (x^{2} + 2 x - 1))

\frac{\partial}{\partial x} (ln (x + y))

f (u) = u^{2}

\frac{1}{3 + x}

\frac{x}{x ^{2} - 1}

What is the limit as x approaches-1 of 8x^4-3x^3+7x ?
The limit as x approaches-1 of 8x^4-3x^3+7x is 4