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The document contains a series of algebraic exercises focused on polynomial operations, simplifications, and solving equations. It includes tasks involving addition, subtraction, multiplication of polynomials, as well as simplification of algebraic fractions and solving first and second-degree equations. The exercises are structured to reinforce understanding of algebraic concepts and identities.

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100% found this document useful (1 vote)
31 views3 pages

Ilovepdf Merged

The document contains a series of algebraic exercises focused on polynomial operations, simplifications, and solving equations. It includes tasks involving addition, subtraction, multiplication of polynomials, as well as simplification of algebraic fractions and solving first and second-degree equations. The exercises are structured to reinforce understanding of algebraic concepts and identities.

Uploaded by

Mar
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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EJERCICIOS REPASO UNIDAD EL LENGUAJE ALGEBRAICO (POLINOMIOS).

1. Sean F  x =2x 2−3x1 , G x= x 22x−1 , H  x =5x 2−3x7 . Calcula:

a. F(x)+G(x) d. 2F(x)+2G(x)-3H(x)

b. F(x)-G(x) e. H(x)-5G(x)

c. -F(x)-G(x) f. F(x)+G(x)-H(x)

2. Opera y simplifica.
2 3 2 3 4 2 2
a. 2x3x −7x 14x−5x 9x −4x  c. 2x3x −9−5x23x 

b. 95x−3x 29x3 −3−4x−5x 24x3  d. 8−3x16x 26x 3−9−3x5x 2 

3. Opera y simplifica.
a. 2x 2−x 5⋅ x−3 c.  x 2−5⋅2x 3−4
2 2
b.  x −5x3⋅4x−5 d. 4x −9x1⋅7x−2

4. Sean 2 3
F  x =3x x−2 , G x=4x −5 , realiza las siguientes operaciones:

a. F  x ⋅G  x  c. 3F(x)-5G(x)

b. 2F(x)-3G(x) d. F  x G x −2F x ⋅G x 

5. Efectúa las siguientes operaciones, teniendo en cuenta las identidades notables.


2
a. 3x4⋅3x−4 e.  x−5

b. 3x−22 f. 2x62

c. 5x3⋅5x−3 g. −8x−42
2
d.  x3

6. Simplifica las siguientes fracciones algebraicas extrayendo previamente factor común.


xx 3 4x3y 25 x 3 y 250 x 2 y 3 31x 20 1x 
a. b. c. d.
22x 2 4xy3y 2 5 x 2 y 210 x y 3 1x

51−2x 4y 2 1−2x 6 x y 2−3 x 2 y


e. f.
y−2xy 8 x 2 y 2−4 x 3 y
Resolver las siguientes ecuaciones de primer grado
x x  5 x 1 x 1
1. 1  7 21.  
5 8 10 12
3x x  4 5x  1 2 x  1
2.  10  x 22.  
5 3 2 6
x 7 5 2 x  4 3x  6
3.   23.   x2
3 2 2 3 2
2x x x
 
3x x 
4. 24.  3 x  3   1
3 2 6 4 2 
x 5 x 5 2  x  3 6  2  x 
5.  25.  0
3 2 3 5
2x  5 1 2x 2 3  x  4  x  2
6. 
5 2 26.  8
3 5
x 5 8 x
7.  2  x  3 4 x  9
2 4 27.  1
9 15
x x 3x
8.    38 x3
2 5 7 28. 2  x  7    x5
4
2x
9.  x  12  3 x 3  x  1 5  3  x 
5 29.   2x
2 4
2x  7
10.  3  1 x 2  x  2 3  x  2
3 30. x2
x x x 3 5
 x  21  
1 4  x  5  3 x 1 2  x  3
11.
2 4 5 31.    
x 3x 2x 3 3 4 2 3
12.   5
2 4 3 x  x 1
32.  2     3 x
4 5 7 5
13. 1 x  4  x
7 x  3
33. 3   5    3x  2 
14.
5x
1  
1 x 2  2
3 3 6
3x  3x x 
2 x 3x 1 34. 1  3  
15.    4  2 3
3 2 4 2
x5  3x 
x  11 x  5 35.  2   x   1
16.   4x  2 3  2 
6 9
2 x  4 3x  6  x 3  2x 
17.   x2 36. 5     95  
3 2 2 4  3 
7  5 x 13  3 x  5x  1 x
18.   11 37. 3   1  2   
3 2  3  3 5
x x  16  x 4  1 2x 
19.   22  x 38.
5x
 3     3     38
12 10 3 4 5 5 3 
x x 3 x 4
20.    13 5x  4 x   3x 
2 3 4 39.  3   1  2  4  
3 2   2 
Ecuaciones de segundo grado
Completas Incompletas (tipo 1) Incompletas (tipo 2)

a) x2-9x+14=0 a) 6x2-24=0 a) 6x2-9x=0

b) x2+10x+25=0 b) 5x2-125=0 b) 2x2+10x=0

c) 5x2+1=6x c) 5x2+10=0 c) 18x2=6x

d) x2+9=10x d) 4x2-36=0 d) 2x2=-10x

e) x2-x=20 e) x2+1=0 e) x2-x=0

Algunas ecuaciones más de segundo grado más complicadas…


2
a) 1 - x -
3x + 2
=1 e) (3x – 4)(4x – 3) – (2x – 7)(3x – 2) = 214
3 3

2 2x f) 8(2 – x)2 = 2(8 – x)2


b) x2 - x = -
9 3
x − 6x + 9
2
g) (x + 3)2 – 8x – 9 = 0
c) - x + x 2 = x - (x - 2)
2

2
x + 2 = 5x h) (x + 4)2 + (x – 3)2 = (x + 5)2
d)
3 3
i) (x + 13)2 = (x + 12)2 + (x – 5)2

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