# Ejercicios resueltos de ecuaciones.

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Ejercicios Resueltos de Ecuaciones:

(5)

F(x) = x2 + 8x
----
2

F(2) = (2)2 + 8(2)
----
2

= 4 +16
----
2

= 4 + 8

= 12

(6)

G(a) = 2 + 2a
----
x3

= 2 + 2(16)------
(2)3

= 2 + 32
----
8

= 2 + 4

= 6

(7)

( x2 + a ) ‘ ( a ) ‘
(--- ) = (x2) ‘ + ( --- )
( x ) ( x )

y ‘ = 2x + ( ( a) ‘ . x - a. (x) ‘-------------------------
x2

= 2x + 0. X - a . 1
-----------------------x2

= 2x - a
---
x2

(8)

yy ‘ = 2 - 0 . x2 - a . 2x--------------------
x4

= 2 + a . 2x
---------
x4

= 2 + 2a
----x3

(9)

( f(x) ) ‘ f(x) ‘ . g(x) - f(x) . g(x) ‘
( ----- ) = ----------------------------------
( g(x) ) ( g(x) )2

(10)

( 3x + 2x2 – 4x3 ) ‘ 3 + 4x – 12x3 – 8x 8x - 3
( -------------------- ) = ------------------ = ---------- = ---------
( 5x + 2 ) 5 + 0 5 5

(11)

( 3x+ 2x2 – 4x3 ) ‘ . 5x + 2 - 3x + 2x2 – 4x3 . ( 5x + 2 ) ‘
---------------------------------------------------------------------------
( 5x + 2 )2

( 3 + 4x –...