Which of the following equation is not a quadratic equation
A) x + 1/x = 2
B) x² + 7 √x + 9 = 0
C) x² - 9 = 4
D) x² + x = √3/2
Answers
Answered by
4
Answer:
x+1/x=2 is not a quadratic equation
Answered by
1
Step-by-step explanation:
Given equation is x
2
−(
3
+1)x+
3
=0
(x−
2
3
+1
)
2
+
3
−(
2
3
+1
)
2
=0
(x−
2
3
+1
)
2
+
3
−
4
4+2
3
=0
(x−
2
3
+1
)
2
+
3
−1−
2
3
=0
(x−
2
3
+1
)
2
=1−
2
3
(x−
2
3
+1
)
2
=(
2
3
−1
)
2
x−
2
3
+1
=±
2
3
−1
x=
3
,1
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