Find the roots of the equation by using quadratic formula 2xsquare+x-4=0
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0
Step-by-step explanation:
The given quadratic equation is
2x
2
+x−4=0
⇒x
2
+
2
x
−2=0
⇒x
2
+
2
x
=2
On adding both sides
16
1
we get
x
2
+
2
x
+
16
1
=2+
16
1
⇒(x+
4
1
)
2
=
16
33
⇒x+
4
1
=±
4
33
⇒x=±
4
33
−
4
1
⇒x=
4
−1−
33
,
4
−1+
33
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