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Byju's Answer
Standard X
Mathematics
Solving a Quadratic Equation by Factorization Method
State true or...
Question
State true or false:
If
x
=
4
is the solution of the equation
3
x
2
+
k
x
−
2
=
0
, then the value of
k
=
−
23
2
.
A
True
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B
False
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Solution
The correct option is
A
True
Putting
x
=
4
in the given equation
3
x
2
+
k
x
−
2
=
0
, we get
3
(
4
)
2
+
k
(
4
)
−
2
=
0
48
+
4
k
−
2
=
0
4
k
=
−
46
∴
k
=
−
23
2
Suggest Corrections
0
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Find the value of k if x = 4 is the solution of the equation 3x
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