Respuesta :

Step 1:
(

2
+
2

+
7
)
+
(
4

2
+


3
)
(
x
2
+
2
x
+
7
)
+
(
4
x
2
+
x

3
)
(x2+2x+7)+(4x2+x−3)

2
+
2

+
7
+
4

2
+


3
x
2
+
2
x
+
7
+
4
x
2
+
x

3
x2+2x+7+4x2+x−3

Step 2:

2
+
2

+
7
+
4

2
+


3
x
2
+
2
x
+
7
+
4
x
2
+
x

3
x2+2x+7+4x2+x−3

2
+
2

+
4
+
4

2
+

x

Step 3:
2
+
2

+
4
+
4

2
+

x
2
+
2
x
+
4
+
4
x
2
+
x
x2+2x+4+4x2+x
5

2
+
2

+
4
+

5
x
2
+
2
x
+
4
+
x
5x2+2x+4+x

Step 4: 5

2
+
2

+
4
+

5
x
2
+
2
x
+
4
+
x
5x2+2x+4+x
5

2
+
3

+
4



Answer:52+3+4

Answer:

(x^2 + 2x + 7) + (4x^2 + x - 3) =

x^2 + 2x + 7 + 4x^2 + x - 3 =

5x^2 + 3x + 4