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Byju's Answer
Standard IX
Mathematics
Polynomials
a+b3-8
Question
(a + b)
3
-
8
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Solution
a
+
b
3
-
8
=
a
+
b
3
-
2
3
=
a
+
b
-
2
a
+
b
2
+
a
+
b
×
2
+
2
2
=
a
+
b
-
2
a
2
+
2
a
b
+
b
2
+
2
a
+
2
b
+
4
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