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Maths CBSE Homework Assignments
Class 7
Algebraic expressions
Value of an algebraic expression I
3.
Calculate the value of algebraic expressions
Question:
3
m.
Find out the value of
algebraic
expressions
if \(m =\)
30
, \(n=\)
7
.
I)
16
m
−
12
n
−
5
\(=\)
.
II)
m
2
−
4
n
2
+
9
\(=\)
.
III)
2
m
2
−
5
n
2
+
16
\(=\)
.
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