Pictures might be ok if the problem is a simple nutrient deficiency and the palm is otherwise healthy and established. But brown tips throughout the tree sounds more likely :
If recently planted, could be an air pocket under the root ball. Possible to have this effect the tree for the life of tree, or slowly kill it.
If recently planted, and the palm was B&B (dug from the ground and replanted) fertilizer can cause this problem (or even kill the palm) if applied before the roots have regrown. 6 months to a year on average.
The palm planted at the proper depth? Too deep or too shallow are both bad.
Did the landscaper 'mound' around the tree? Causes water to flow away from the root ball where it is needed. Add weedmat and stones around the tree 'mound' and it is almost impossible to get the tree enough water.
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