Work of the forces

Two forces (6i^+2j^3k^)N\left(6\hat{i} + 2\hat{j} - 3\hat{k}\right) \si{\newton} and (5i^3j^+7k^)N\left(5\hat{i} - 3\hat{j} + 7\hat{k}\right) \si{\newton} act on an object that moves on a frictionless surface and, in doing so, displace it from (2i^+3j^5k^)m\left(2\hat{i} + 3\hat{j} - 5\hat{k}\right) \si{\metre} to (3i^3j^+4k^)m\left(-3\hat{i} - 3\hat{j} + 4\hat{k}\right) \si{\metre}.

Find the magnitude of the work done on the object, WW in joules.

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