please help me out of this
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hope this help uh.........
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+
2x
2
−5x+3
=
3
(x+1)
2
2x
2
−5x+3
=
3
(x+1)
2
−
2
3x−2
2x
2
−5x+3
=
6
2(x+1)
2
−3(3x−2)
6
2x
2
−5x+3
=2(x
2
+2x+1)−9x+6
6
2x
2
−5x+3
=2x
2
+4x+2−9x+6
6
2x
2
−5x+3
=2x
2
−5x+8
6
2x
2
−5x+3
=2x
2
−5x+3+5
6
2x
2
−5x+3
=(
2x
2
−5x+3
)
2
+5
Put
2x
2
−5x+3
=t, we get
6t=t
2
+5
t
2
−6t+5=0
t
2
−5t−t+5=0
t(t−5)−1(t−5)=0
(t−1)(t−5)=0
t=1,5
∴
2x
2
−5x+3
=t
2x
2
−5x+3=t
2
2x
2
−5x+3=1
2
...... [∵t=1]
2x
2
−5x+2=0.......(i)
2x
2
−4x−x+2=0
2x(x−2)−1(x−2)=0
(2x−1)(x−2)=0
x=
2
1
,2
Also 2x
2
−5x+3=5
2
2x
2
−5x−22=0.......(ii)
Using quadratic formula
x=
2(2)
5±
25−4(2)(−22)
=
4
5±
201
So the values of x are
4
5±
201
,
2
1
and 2
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