∫ (3x+5) dx

$\int (3x+5)dx$

$\int (t^2-3t+1)dt$

$\int (4x^2-x+3)dx$

$\int \left(\frac{u^2}{7}-\frac{u}{3}+\frac{1}{5}\right)du$

$\int (t^2+x)dx$

$\int (t^2+x)dt$

$\int \left(\frac{1}{x^2}-\sqrt{x}\right)dx$

$\int \left(\frac{3}{\sqrt{x}}-x^3\right)dx$

$\int \left(x^{\frac{1}{2}}-3\sqrt[3]{x}\right)dx$

$\int x\sqrt[3]{x}dx$

$\int \frac{dx}{x\sqrt{x}}$

$\int (\sin x-2\cos x)dx$

$\int \left(\frac{\cos x}{5}+\frac{2}{{\cos }^{2}x}\right)dx$

$\int \frac{da}{1+a^2}$

$\int (2^x-e^x)dx$

$\int (2x-1)(3x+5)dx$

$\int (\sqrt{x}-3{)}^{2}dx$

$\int \frac{3x^2+x-1}{\sqrt[3]{x}}dx$

$\int \frac{2x^2-x-3}{\sqrt{x}}dx$

$\int x(x-1{)}^{2}dx$

$\int \frac{2\sqrt[3]{x}-3x^2}{x^2}dx$

$\int (3x^2-2\sqrt[3]{x})dx$

$\int \frac{4x^2-9}{2x-3}dx$

$\int \frac{{\sin }^{2}t-2}{{\sin }^{2}t}dt$

$\int (2e^t-3\sin t)dt$

$\int \left(e^x-\frac{1}{{\cos }^{2}x}\right)dx$

$\int 4(2x-1{)}^{3}dx$

$\int \frac{e^x+e^x\sin x}{e^x}dx$

$\int (2x+x^3\sqrt{x})dx$

$\int (e^x+\sqrt[5]{x^3})dx$

$\int \frac{x^{3}dx}{1+x^4}$