Login
Login
Sign up
Start
Mathmania
Teacher tutorials
TOP
Subjects
Bridge Course
Testworks
Subject updates
Ya+
News
Send feedback
See more
Contacts
About Us
Terms and Conditions
Privacy Policy
PDF chapter test
TRY NOW
Subjects
Mathematics State Board
Class 9
Algebra
Algebraic identities
15.
Two mark exercise problems IV
Exercise condition:
8
m.
Answer variants:
x
3
+
3
x
2
y
+
3
x
y
2
+
1
y
3
27
a
3
−
108
a
2
b
+
144
ab
2
−
64
b
3
3
x
2
y
+
3
x
y
2
+
1
y
3
+
1
x
3
27
a
3
−
108
a
2
b
−
144
ab
2
+
64
b
3
1
. Expand:
S.No
Expression
Expansion
(i)
\((3a - 4b)^3\)
(ii)
\(\left(x + \frac{1}{y} \right)^3\)
2
. Evaluate the following by using identities:
S.No
Expression
Solution
(i)
\(98^3\)
(ii)
\(1001^3\)
Login
or
Fast registration
Previous exercise
Exit to the topic
Next exercise
Send feedback
Did you find an error?
Send it to us!