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Pre-Algebra Examples
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Pre-Algebra
Add (x^2+6x-5)+(2x^2+15)
(
x
2
+
6
x
-
5
)
+
(
2
x
2
+
15
)
(
x
2
+
6
x
−
5
)
+
(
2
x
2
+
15
)
Step 1
Remove parentheses.
x
2
+
6
x
-
5
+
2
x
2
+
15
x
2
+
6
x
−
5
+
2
x
2
+
15
Step 2
Add
x
2
x
2
and
2
x
2
2
x
2
.
3
x
2
+
6
x
-
5
+
15
3
x
2
+
6
x
−
5
+
15
Step 3
Add
-
5
−
5
and
15
15
.
3
x
2
+
6
x
+
10
3
x
2
+
6
x
+
10
[
x
2
1
2
√
π
∫
x
d
x
]
⎡
⎢
⎣
x
2
1
2
√
π
∫
x
d
x
⎤
⎥
⎦
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