Guía : 4 Expresiones Algebraicas Fraccionarias - La página de Ale
Guía : 4 Expresiones Algebraicas Fraccionarias - La página de Ale
Guía : 4 Expresiones Algebraicas Fraccionarias - La página de Ale
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<strong>Guía</strong> : 4<br />
<strong>Expresiones</strong> <strong>Algebraicas</strong> <strong>Fraccionarias</strong><br />
Hallar el M.C.D y el m.c.m <strong>de</strong> los siguientes conjuntos <strong>de</strong> polinomios :<br />
2 2 2 2<br />
P x = 4 ⋅ a b − 3⋅ a b , Q x = 16 ⋅ a − 9 ⋅ b<br />
1) ( ) ( )<br />
2) ( ) ( ) ( ) 2<br />
3 2 2 3<br />
P x = x + 3⋅ x y + 3⋅ x y + y , Q x = 5 ⋅ x + y<br />
2 2<br />
3) ( ) ( ) ( )<br />
P x = x − 4 ⋅ x + 4 , Q x = x − 4 , R x = 3 ⋅ x + 6<br />
3 2 4 2 3<br />
P x = 24 ⋅ x y , Q x = 80 ⋅ x y , R x = 60 ⋅ x y<br />
4) ( ) ( ) ( )<br />
5 3 2 4<br />
P x = 28 ⋅ m p , Q x = − 98 ⋅ m , R x = 112 ⋅ m p n<br />
5) ( ) ( ) ( )<br />
2 2 2 2<br />
P x = 15 ⋅ a b m − 6 ⋅ a b n , Q x = 30 ⋅ a b m − 12 ⋅ a b n<br />
6) ( ) ( )<br />
7) ( ) ( ) ( ) ( ) ( ) 3<br />
2 2 2 2<br />
P x = 3⋅ m − n , Q x = m − 2 ⋅ m n + n , R x = 2 ⋅ m − n<br />
3 3 2 2<br />
P x = x − 8 , Q x = x − 6 ⋅ x + 12 ⋅ x − 8 , R x = x − 4 ⋅ x + 4<br />
8) ( ) ( ) ( )<br />
2 3<br />
2 2<br />
P x = 1 − 16 ⋅ x , Q x = ⋅ a x − 3 ⋅ a x , R x = 4 ⋅ x + 11 ⋅ x − 3<br />
4<br />
9) ( ) ( ) ( )<br />
3 2 2 2 2<br />
P x = 5 ⋅ a − 20 , Q x = a − a n − 4 ⋅ a + 4 ⋅ n , R x = a − 8 ⋅ a + 16<br />
10) ( ) ( ) ( )<br />
Operaciones con expresiones algebraicas fraccionarias :<br />
1)<br />
2)<br />
3)<br />
4)<br />
5)<br />
2<br />
y − 16 y + 3<br />
⋅ =<br />
2 ⋅ y + 6 y − 4<br />
3 2<br />
x + x − x − 1<br />
=<br />
2<br />
3⋅ x − 3<br />
2<br />
a − 2 ⋅ a + 1<br />
=<br />
4 4<br />
a x − a − x + 1<br />
2 2<br />
m − n m + n<br />
⋅ =<br />
4 ⋅ m + 4 ⋅n m − n<br />
3 2<br />
x − x + 4 ⋅ x − 4<br />
=<br />
4<br />
x − 16<br />
Prof. <strong>Ale</strong>jandra Verónica Rosa <strong>de</strong> Olejarczyk.<br />
a − b<br />
6) 1 + =<br />
a + b<br />
7)<br />
8)<br />
9)<br />
10)<br />
1 1<br />
+ =<br />
x − 2 x + 2<br />
4 ⋅ x y x − y<br />
+ =<br />
2 2<br />
x − y x + y<br />
5 ⋅ a b a − b<br />
− =<br />
2 2<br />
a − b a + b<br />
5 ⋅ a b a + b<br />
+ =<br />
2 2<br />
a − b a − b<br />
- 17 -
6 ⋅ x y x + y<br />
11) − =<br />
2 2<br />
x − y x − y<br />
12)<br />
13)<br />
14)<br />
15)<br />
16)<br />
17)<br />
18)<br />
19)<br />
20)<br />
21)<br />
22)<br />
23)<br />
- 18 -<br />
2<br />
25 ⋅ x − 4 5 ⋅ x − 2<br />
: =<br />
2<br />
x − 9 x + 3<br />
y − 2 y + 6<br />
− =<br />
4 ⋅ y + 8 5 ⋅ y + 10<br />
4 3 2<br />
t − 10 ⋅ t − 25 ⋅ t<br />
5 3<br />
t − 25 ⋅ t<br />
=<br />
4 x + 2 3<br />
+ + =<br />
2 x + 1 x − 1 x − 1<br />
x − 1 x + 3<br />
− =<br />
3 ⋅ x + 15 5 ⋅ x + 25<br />
4 ⋅ x 3 ⋅ x 4<br />
+ − =<br />
2<br />
x − 1 1 − x x − 1<br />
− 2 5 y + 3<br />
+ + =<br />
2<br />
y + 2 y − 2 y − 4<br />
6 5<br />
+ =<br />
2 2<br />
y + 6 ⋅ y + 9 y − 9<br />
3 2<br />
x − 64 x − 16<br />
:<br />
=<br />
3 2<br />
x + 64 x − 4 ⋅ x + 16<br />
⎛ 2 ⎞<br />
x x y<br />
⎜ 1 − + ⎟ ⋅ =<br />
⎜ 2 3 3<br />
y y ⎟<br />
⎝ ⎠ x + y<br />
⎛ n + 1 ⎞ x<br />
⎜ − 1<br />
x<br />
⎟ ⋅ =<br />
⎝ ⎠ a n + a − a x<br />
5 y 2 y 3<br />
− + =<br />
2<br />
1 − 2 y 2 y + 1 4 y − 1<br />
3<br />
24)<br />
2<br />
2<br />
⎛ x m ⎞ ⎛ 2 m − x ⎞<br />
⎜ 1<br />
⎜<br />
⎜ ⎟<br />
2 ⎟ ⎜ 2 ⎟<br />
− + =<br />
⎝ m x ⎠ ⎝ x − m ⎠<br />
1 1 1 a<br />
+ − − 3 3 3<br />
a b c bc a b c<br />
⋅ =<br />
3 3<br />
a − c ⋅ a b c a + b<br />
25) ( )<br />
26)<br />
27)<br />
28)<br />
29)<br />
30)<br />
31)<br />
2 2<br />
7 − x x − x − 6<br />
+ =<br />
2<br />
x − 1<br />
( x − 1 ) ⋅ ( x + 1 )<br />
⎛ x − 1 − a ⎞ ⎛ x ⎞<br />
⎜ 1 : ⎟ ⋅ ⎜ − 1 ⎟ =<br />
⎝ − 3⋅ a ⎠ ⎝ a + 1 ⎠<br />
( a b )<br />
( )<br />
−<br />
b ⋅<br />
−<br />
2 2<br />
a − b<br />
a<br />
a − b<br />
a<br />
2 2<br />
x ⎛ x ⎞<br />
2 ⎜ − 1<br />
2<br />
y ⎜<br />
⎟<br />
4 y ⎟<br />
⎝ ⎠<br />
=<br />
3 2<br />
x + 2 x y<br />
2 y<br />
6<br />
3 3<br />
2<br />
b<br />
a + b +<br />
a − b<br />
=<br />
2<br />
a<br />
a − b<br />
2<br />
2<br />
⎧ ⎫<br />
n<br />
1<br />
⎛ ⎞<br />
⎪ − ⎜ ⎟ ⎪<br />
⎪ ⎝ m ⎠ ⎪<br />
⎨<br />
n 1<br />
⎬<br />
⎪ + ⎪<br />
2 ⎪⎩ m m ⎪⎭<br />
=<br />
=