(
3x^2
-
3x
-
5
)
+
(
2x^2
+
5x
+
3
)
=
____________________
+
____________________
-
____________________
(
2x^3
+
8x^2
+
x
+
10
)
-
(
5x^2
-
4x
+
6
)
=
____________________
+
____________________
+
____________________
+
4
(
-
2x
+
2
)
(
4x^2
-
2x
+
3
)
=
-
____________________
+
____________________
-
____________________
+
____________________
8x^3
+
4x
-
-
-
-
-
-
-
-
-
-
=
____________________
+
____________________
2x
(
-
2x
+
2
)
(
4x^2
-
2x
+
3
)
=
-
____________________
+
____________________
-
____________________
+
____________________
(
4x^2
+
3
)
+
(
3y^2
-
4
)
=
____________________
-
____________________
+
____________________
(
y^2
+
3y
+
8
)
-
(
4y^2
-
9
)
=
-
____________________
+
____________________
+
____________________
12x^4
+
6x^2
+
2x
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
=
____________________
+
____________________
+
____________________
2x
y^8
-
-
-
-
-
=
____________________
y^4
-
2x
=
____________________
/
____________________
