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Byju's Answer
Standard VIII
Mathematics
Addition and Subtraction of Algebraic Expression
Factorise by ...
Question
Factorise by using formula:
(
6
2
3
)
2
−
(
2
1
3
)
2
Open in App
Solution
Formula
a
2
−
b
2
=
(
a
+
b
)
(
a
−
b
)
Applying the formula, we get
(
6
2
3
)
2
−
(
2
1
3
)
2
=
(
6
2
3
+
2
1
3
)
(
6
2
3
−
2
1
3
)
=
(
20
3
+
7
3
)
(
20
3
−
7
3
)
=
27
3
×
13
3
=
39
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0
Similar questions
Q.
Evaluate :
(
6
2
3
)
2
−
(
2
1
3
)
2
Q.
Using the given pattern, find the missing numbers.
1
2
+
2
2
+
2
2
=
3
2
2
2
+
3
2
+
6
2
=
7
2
3
2
+
4
2
+
12
2
=
13
2
4
2
+
5
2
+
20
2
=
21
2
5
2
+
6
2
+
30
2
=
31
2
6
2
+
7
2
+
42
2
=
.
.
.
2
Q.
Using the given pattern, find the missing numbers:
1
2
+
2
2
+
2
2
=
3
2
2
2
+
3
2
+
6
2
=
7
2
3
2
+
4
2
+
12
2
=
13
2
4
2
+
5
2
+
___
=
21
2
5
2
+
___
+
30
2
=
31
2
6
2
+
7
2
+
___
=
____
Q.
Choose or find odd number pair
(
24
−
21
)
,
(
46
−
32
)
,
(
62
−
23
)
,
(
84
−
24
)
Q.
The equation of the image of circle
x
2
+
y
2
−
4
x
+
6
y
+
10
=
0
in the line
4
x
−
3
y
+
8
=
0
is
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