F = (4x-3) squared - (x + 3) (3-9x) - develop and reduce (4x-3) to the edge
- show that F = (5x) squared

(Gotta play catch up) + (Homeschooling)

see explanation

step-by-step explanation:

since the sequence is geometric there is a common ratio r between consecutive terms, that is

r = 4 ÷ - 2 = - 2

r = - 8 ÷ 4 = - 2

r = 16 ÷ 8 = - 2

the next term - 13 must be incorrect as it should be - 32 for the sequence to be geometric.

the first 4 terms are therefore geometric with common ratio r = - 2

answer: 2530

hope this

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