HELP WILL GIVE BRAINLIEST IN MIDDLE OF TEST SHOW WORK

Solve: 25 points find the fifth term of an increasing geometric progression if the first term is equal to 7−3 √5 and each term (starting with the second) is equal to the difference of the term following it and the term preceding it.

Can you divide 25 into 4 equal groups? explain why or why not.

Factor the gcf out of the polynomial 9x^6+6x^4+15x^3