arrays and polygons

Hi there i am having problems inserting an array of polygons into a table, i
have added the column using:

ALTER TABLE species ADD COLUMN location polygon[];

this works fine, but when i try

INSERT INTO species (location) VALUES ('{((432,89), (45,87), (89,87)),
((54,78), (34,98))};

I get the following error message:

ERROR: Bad polygon external representation '((432'

Where am i going wrong, all help is much appreciated DAvid