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Standard VIII
Mathematics
Question
Use the identity
(
x
+
a
)
(
x
+
b
)
=
x
2
+
(
a
+
b
)
x
+
a
b
to find the given product:
(
x
y
z
+
4
)
(
x
y
z
+
2
)
.
x
2
y
2
z
2
+
6
x
y
z
x
2
y
2
z
2
+
8
x
2
y
2
z
2
+
6
x
y
z
+
8
x
2
y
2
z
2
−
6
x
y
z
+
8
A
x
2
y
2
z
2
+
6
x
y
z
B
x
2
y
2
z
2
+
8
C
x
2
y
2
z
2
−
6
x
y
z
+
8
D
x
2
y
2
z
2
+
6
x
y
z
+
8
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Solution
Verified by Toppr
Given,
(
x
y
z
+
4
)
(
x
y
z
+
2
)
.
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Similar Questions
Q1
Use the identity
(
x
+
a
)
(
x
+
b
)
=
x
2
+
(
a
+
b
)
x
+
a
b
to find the following products:
(xyz-4) (xyz-2)
View Solution
Q2
4
6
x
y
z
×
3
4
x
2
y
2
z
2
×
6
x
2
y
2
z
2
=
?
View Solution
Q3
4
6
x
y
z
×
3
4
x
2
y
2
z
2
×
6
x
2
y
2
z
2
= ?
View Solution
Q4
Use the identity
(
x
+
a
)
(
x
+
b
)
=
x
2
+
(
a
+
b
)
x
+
a
b
to find the given product:
(
x
y
z
+
4
)
(
x
y
z
+
2
)
.
View Solution
Q5
If
D
1
=
∣
∣ ∣
∣
1
x
y
z
1
y
z
x
1
z
x
y
∣
∣ ∣
∣
and
D
2
=
∣
∣ ∣ ∣
∣
1
1
1
x
y
z
x
2
y
2
z
2
∣
∣ ∣ ∣
∣
then find relation between
D
1
and
D
2
.
View Solution