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Byju's Answer
Standard XII
Mathematics
Quadratic Equation
Question 1vii...
Question
Question 1(vii)
Check whether the following is a quadratic equation:
(vii)
(
x
+
2
)
3
=
2
x
(
x
2
−
1
)
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Solution
(vii)
(
x
+
2
)
3
=
2
x
(
x
2
−
1
)
⇒
x
3
+
8
+
6
x
2
+
12
x
=
2
x
3
−
2
x
⇒
x
3
−
6
x
2
−
14
x
−
8
=
0
It is not of the form
a
x
2
+
b
x
+
c
=
0
Hence, the given equation is not a quadratic equation.
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Q.
Question 1(vii)
Check whether the following are quadratic equations:
(vii)
(
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+
2
)
3
=
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(
x
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Quadratic Equation
Standard XII Mathematics
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