- Ejercicio 12
ejercicios se debe reemplazar cada letra por su respectivo valor
numérico y realizar las operaciones aritméticas correspondientes
1
3
, d=
1
2
, m=6, n=
1
4
-
a
2
–2ab+
b
2
=
3
2
–2(
3
)
(
4
)
+
4
2
=9–24+16=1
-
c
2
+2cd+
d
2
=
(
1
3
)2
+
2
(
1
3
)
(
1
2
)
+
(
1
2
)2
=
1
9
+
1
3
+
1
4
=
4+12+9
36
=
25
36
-
a
c
+
b
d
=
3
1
3
+
4
1
2
=9+8=17
-
c
d
–
m
n
+2=
1
3
1
2
–
6
1
4
+2=
2
3
–24+2=
2
3
–22=
2–66
3
=–
64
3
↔ –21
1
3
-
a
2
3
–
b
2
2
+
m
2
6
=
3
3
3
–
4
2
2
+
6
2
6
=3–
2
2
+6=3–8+6=1
-
3
5
c–
1
2
b+2d=
3
5
(
1
3
)
–
1
2
+
2
(
1
2
)
=
1
5
–2+1=
1
5
–1=
1–5
5
=–
4
5
-
ab
n
+
ac
d
–
bd
m
=
3(
4
)
1
4
+
3
(
1
3
)
1
2
–
(
1
2
)6
=
12
1
4
+
1
1
2
–
2
=48+2–
1
3
=50–
1
3
=
150–1
3
=
149
3
⟺ 49
2
3
-
b
+
n
+
6m
=
4
+
1
4
+
6(
6
)=
2
2
+
1
2
2
+
6
2
=2+
1
2
+6=8+
1
2
=
16+1
2
=
17
2
↔ 8
1
2
-
c
3a
–d
16
b
2
+n
8d
=
1
3
3(
3
)–
1
2
4
2
(4
)
2
+
1
4
2
.
2
2
(
1
2
)
=
3
3
–
2
+
1
(2
)
=1–8+
1
2
=
1
2
–7=
1–14
2
=–
13
2
↔ –6
1
2
-
m
a
d
b
=
6
3
(
1
2
)4
=
216
1
16
=216(
16
)
=3456 -
3
c
2
4
+
4
n
2
m
=
3
1
3
2
4
+
4
1
4
2
6
=
1
12
+
1
24
=
2+1
24
=
3
=
1
8
-
4
d
2
2
+
16
n
2
2
–1=
4
(
1
2
2
)2
+
16
(
1
4
2
)2
–1=–1=0 -
a+b
c
–
b+m
d
=
3+4
1
3
–
4+6
1
2
=
7
1
3
–
10
1
2
=21–20=1
-
b–a
n
+
m–b
d
+5a=
4–3
1
4
+
6–4
1
2
+5(
3
)
=
1
1
4
+
2
1
2
+15=4+4+15=23
-
12c–a
2b
–
16n–a
m
+
1
d
=
(
1
3
)
–3
2(
4
)–
(
1
4
)
–36
+
1
1
2
=
1
8
–
1
6
+2=
3–4+48
24
=
47
24
↔ 1
23
24
-
4b
+
3a
3
–
6m
6
=
4(
4
)+
3(
3
)3
–
6(
6
)6
=
4
2
+
3
2
3
–
6
2
6
=4+
3
3
–
6
6
=4+1–1=4 -
b
+
2d
2
–
3c
+
8d
4
=
4
+
2
(
1
2
)2
–
3
(
1
3
)+
(
1
2
)4
=
2+1
2
–
1+2
4
=
3
2
–
3
4
=
6–3
4
=
3
4
-
2
a
2
b
2
3
+
3
2+
d
2
4
–a
n
=
2
(3
)
2
(4
)
2
3
+
3
2+
(
1
2
)2
4
–3
1
4
=
2
(
3
)(
4
)
3
+
3
2+
1
4
4
–3(
1
2
)
=
8+
3
8+1
4
4
–
3
2
=
16–3
2
+
3
9
4
4
=
13
2
+
3(
3
2
)4
=
13
2
+
9
8
=
52+9
8
=
61
8
↔ 7
5
8