Question

ayudaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa porfavoor¡¡¡

Answer 1

Respuesta:

3.   x-2

4. a=25

Answer 2

Respuesta:

3) x-2

4) a = 25

Explicación paso a paso:

1/2x+3 - 1/3x+1 =

(3x+1-2x-3)/(2x+3)(3x+1) =

x - 2

4) x² - a/(x+4)(x-4) . (x+4)(x+5) =

(x²-a)/(x-4) . 1/(x+5) =

(x²-a)/[(x-4).(x+5) = (x-5)/(x-4)

si a = 25

(x-5)(x+5)/[(x-4).(x+5)] = (x-5)/(x-4)

(x-5)/(x-4) = (x-5)/(x-4)