Para enriquecer la tierra de un jardín se siembran lombrices en ella si la cantidad de lombrices y que se requieren depende del número de plantas x, y esto puede calcularse empleando la expresión y=15x,¿que valor representa el valor 15 en a expresión anterior?​

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

where did you get them? if you picked from the grass, is is probably poisonous.

step-by-step explanation:

the first one is x^2+2x+2

the second one is x^2+4

the last one is x^2-4x+8