Question

ayudddaaaaaa porfavor ​

Answer 1

Respuesta:

A = a

Explicación paso a paso:

f(x + 3) = x² - 1

Hallar  f(a + 2):

f(a + 2) = f(a - 1 + 3)

f(a + 2) = (a - 1)² - 1

f(a + 2) = a² - 2a + 1 - 1

f(a + 2) = a² - 2a

f(a + 2) = a(a - 2)

Hallar  f(2):

f(2) = f(- 1 + 3)

f(2) = (- 1)² - 1

f(2) = 1 - 1

f(2) = 0

Luego:

A = [f(a + 2) - f(2)] / (a - 2)

A = [a(a - 2) - 0] / (a - 2)

A = a(a - 2) / (a - 2)

A = a