Calculus 8th Edition

$\frac{868}{3}$
$\int _1^5$$\int _0^x$$\left(8x-2y\right)dydx$ Take the derivative with respect to y and then x: $\int _0^x\left(8x-2y\right)dy=7x^2$ $\int _1^57x^2dx=\frac{868}{3}$