x sq. + x - a = 1 (x = 3)
Answers
Answered by
1
Answer:
Correct option is
D
x=
3
,1
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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