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Byju's Answer
Standard XII
Mathematics
Monotonically Increasing Functions
Multiply: -...
Question
Multiply:
−
x
y
2
z
2
−
2
y
z
x
2
+
3
x
2
y
z
−
7
by
−
6
x
2
y
z
Answer:
6
x
3
y
3
z
3
−
12
x
4
y
2
z
2
+
42
x
2
y
z
A
True
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B
False
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Solution
The correct option is
A
True
(
−
x
y
2
z
2
+
2
y
z
2
x
+
3
x
2
y
z
−
7
)
(
−
6
x
2
y
z
)
=
6
x
3
y
3
z
3
−
12
x
3
y
2
z
2
+
42
x
2
y
z
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0
Similar questions
Q.
Multiply:
−
x
y
2
z
2
+
2
y
z
2
x
+
3
x
2
y
z
−
7
by
−
6
x
2
y
z
Q.
State true\false:
3
x
+
2
y
=
5
,
2
x
−
3
y
=
7
is an example of consistent pair of equations.
Q.
Tricks with your age.
Write your age __________
Multiply it by 7 __________
Again multiply the answer by 13 _________
Multiply again that answer by 11 _________
Now look at your last answer. Can you find your age in that answer?
How many times does your age show in the answer?
Now try this trick with other people.