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Byju's Answer
Standard X
Mathematics
Nature of Roots
x 2+8 x+16=0
Question
x
2
+
8
x
+
16
=
0
Open in App
Solution
Given:
x
2
+
8
x
+
16
=
0
Here,
a
=
1
,
b
=
8
and
c
=
16
Discriminant
D
is
given
by
:
D
=
(
b
2
−
4
a
c
)
=
(
8
)
2
−
4
×
1
×
16
= 64
−
64
= 0
Thus
,
the
roots of the equation are equal.
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Similar questions
Q.
Solve :-
x
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+
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x
+
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=
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Q.
Solve :
x
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Write
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Q.
The equation of the parabola with focus (0, 0) and directrix x + y = 4 is
(a) x
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− 2xy + 8x + 8y − 16 = 0
(b) x
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+ y
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(d) x
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