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Subjects
Mathematics CBSE
Class 8 New
We distribute yet things multiply
Pumpa Practice Questions
11.
Expand the expression
Exercise condition:
2
m.
Expand
2
+
7
p
2
−
7
p
.
Answer:
The identity used is
a
+
b
a
−
b
=
i
i
−
i
i
.
2
+
7
p
2
−
7
p
\(=\)
i
−
i
i
i
[
Note
: Insert constant first and then term with variable. While entering terms, coefficient with sign is followed by the variable.]
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