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Subjects
Mathematics State Board
Class 9
Algebra
Algebraic identities
30.
Two mark exercise problems XIX
Exercise condition:
6
m.
Answer variants:
m
(
4
m
+
5
n
)
(
2
m
−
3
n
)
1
x
+
1
y
(
a
2
+
2
)
(
a
+
1
)
(
a
−
1
)
m
(
4
m
−
5
n
)
(
2
m
−
3
n
)
(
a
2
−
2
)
(
a
+
1
)
(
a
−
1
)
1
x
+
1
y
2
Factorise the following by splitting the middle term.
S.No
Expression
Factors
(i)
\(a^4 - 3a^2 + 2\)
(ii)
\(8m^3 - 2m^2n - 15mn^2\)
(iii)
\(\frac{1}{x^2} + \frac{1}{y^2} + \frac{2}{xy}\)
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