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Pre-Algebra Examples
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Pre-Algebra
Add (-8x^2+3)+(-9x^2+3x-3)
(
−
8
x
2
+
3
)
+
(
−
9
x
2
+
3
x
−
3
)
(
-
8
x
2
+
3
)
+
(
-
9
x
2
+
3
x
-
3
)
Step 1
Remove parentheses.
−
8
x
2
+
3
−
9
x
2
+
3
x
−
3
-
8
x
2
+
3
-
9
x
2
+
3
x
-
3
Step 2
Combine
the opposite
terms
in
−
8
x
2
+
3
−
9
x
2
+
3
x
−
3
-
8
x
2
+
3
-
9
x
2
+
3
x
-
3
.
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Step 2.1
Subtract
3
3
from
3
3
.
−
8
x
2
−
9
x
2
+
3
x
+
0
-
8
x
2
-
9
x
2
+
3
x
+
0
Step 2.2
Add
−
8
x
2
−
9
x
2
+
3
x
-
8
x
2
-
9
x
2
+
3
x
and
0
0
.
−
8
x
2
−
9
x
2
+
3
x
-
8
x
2
-
9
x
2
+
3
x
−
8
x
2
−
9
x
2
+
3
x
-
8
x
2
-
9
x
2
+
3
x
Step 3
Subtract
9
x
2
9
x
2
from
−
8
x
2
-
8
x
2
.
−
17
x
2
+
3
x
-
17
x
2
+
3
x
⎡
⎢
⎣
x
2
1
2
√
π
∫
x
d
x
⎤
⎥
⎦
[
x
2
1
2
π
∫
x
d
x
]
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