\(i\left(5\left(75\right)-\left(-120\right)3\right)-j\left(4\left(75\right)-\left(100\right)3\right)+k\left(4\left(120\right)-\left(100\right)5\right)\)

\(\)\(i\left(375+360\right)-j\left(300-300\right)+k\left(-480-500\right)=735i-980k\)