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Subjects
Assessments
Math TN
9th Std
Ch-3:Algebra
3.
Expand the given factor using the identity
Exercise condition:
2
m.
−
7
x
+
8
y
+
7
z
2
\(=\) ___________
49
x
2
+
64
y
2
+
49
z
2
−
112
x
y
+
112
y
z
−
98
x
z
−
49
x
2
+
64
y
2
+
49
z
2
+
112
x
y
+
112
y
z
−
98
x
z
49
x
2
+
64
y
2
+
49
z
2
+
112
x
y
+
112
y
z
+
98
x
z
−
49
x
2
+
64
y
2
+
49
z
2
−
112
x
y
+
112
y
z
−
98
x
z
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