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Byju's Answer
Standard VIII
Mathematics
Multiplication of Trinomial by a Monomial
Simplify x 2 ...
Question
Simplify
(
x
)
(
2
x
+
3
y
−
4
z
)
.
A
2
x
2
−
3
x
y
+
4
x
z
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B
2
x
2
+
3
x
y
−
4
x
z
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C
2
x
2
+
6
x
y
−
2
x
z
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D
2
x
2
+
5
x
y
−
4
x
z
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Solution
The correct option is
B
2
x
2
+
3
x
y
−
4
x
z
Given:
(
x
)
(
2
x
+
3
y
−
4
z
)
=
2
×
x
×
x
+
x
×
3
×
y
−
x
×
4
×
z
=
2
x
2
+
3
x
y
−
4
x
z
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0
Similar questions
Q.
Example
Add
(
2
x
2
+
6
y
+
3
x
y
)
,
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3
x
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−
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−
x
)
and
(
6
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y
+
5
)
.
Q.
Find the equation to the common conjugate diameters of the conics (1)
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+
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and
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+
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, and (2)
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x
y
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and
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Q.
Question 81 (iv)
Add :
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−
3
x
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+
4
y
2
−
9
,
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+
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Q.
Simplify the following expression:
(
x
+
2
y
)
(
4
x
−
y
)
+
(
2
x
−
y
)
(
y
−
x
)
Q.
What should be added to
6
x
y
+
3
y
2
+
7
x
2
+
2
z
x
to get
2
x
2
+
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y
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