Pls ans pls pls

a 3² +4² = 25 the factors are 5²

b 8²+6²= 100 the factors are 5²and 2²

c 12²+5²= 169 the factors are 13²

d 8²+15²= 289 the factors are 17²

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

it would open into a square depending on the type of envelope i’m not sure about the second part