Solve ∫ (2x^5+4x^3-3x+8) wrt x

$$\int{ (2 { x }^{ 5 } +4 { x }^{ 3 } -3x+8) }d x$$

Evaluate

$$\frac{x^{6}}{3}+x^{4}-\frac{3x^{2}}{2}+8x+С$$

Solution Steps

Integrate the sum term by term.

$$\int 2x^{5}\mathrm{d}x+\int 4x^{3}\mathrm{d}x+\int -3x\mathrm{d}x+\int 8\mathrm{d}x$$

Factor out the constant in each of the terms.

$$2\int x^{5}\mathrm{d}x+4\int x^{3}\mathrm{d}x-3\int x\mathrm{d}x+\int 8\mathrm{d}x$$

Since \int x^{k}\mathrm{d}x=\frac{x^{k+1}}{k+1} for k\neq -1, replace \int x^{5}\mathrm{d}x with \frac{x^{6}}{6}. Multiply 2 times \frac{x^{6}}{6}.

$$\frac{x^{6}}{3}+4\int x^{3}\mathrm{d}x-3\int x\mathrm{d}x+\int 8\mathrm{d}x$$

Since \int x^{k}\mathrm{d}x=\frac{x^{k+1}}{k+1} for k\neq -1, replace \int x^{3}\mathrm{d}x with \frac{x^{4}}{4}. Multiply 4 times \frac{x^{4}}{4}.

$$\frac{x^{6}}{3}+x^{4}-3\int x\mathrm{d}x+\int 8\mathrm{d}x$$

Since \int x^{k}\mathrm{d}x=\frac{x^{k+1}}{k+1} for k\neq -1, replace \int x\mathrm{d}x with \frac{x^{2}}{2}. Multiply -3 times \frac{x^{2}}{2}.

$$\frac{x^{6}}{3}+x^{4}-\frac{3x^{2}}{2}+\int 8\mathrm{d}x$$

Find the integral of 8 using the table of common integrals rule \int a\mathrm{d}x=ax.

$$\frac{x^{6}}{3}+x^{4}-\frac{3x^{2}}{2}+8x$$

If F\left(x\right) is an antiderivative of f\left(x\right), then the set of all antiderivatives of f\left(x\right) is given by F\left(x\right)+C. Therefore, add the constant of integration C\in \mathrm{R} to the result.

$$\frac{x^{6}}{3}+x^{4}-\frac{3x^{2}}{2}+8x+С$$

Differentiate w.r.t. x

$$2x^{5}+4x^{3}-3x+8$$