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Byju's Answer
Standard XI
Mathematics
Quadratic Polynomial
The zeroes of...
Question
The zeroes of the quadratic polynomial
f
(
x
)
=
x
2
+
7
x
+
10
are
A
−
2
,
5
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B
−
5
,
2
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C
−
5
,
−
2
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D
2
,
5
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Solution
The correct option is
C
−
5
,
−
2
For zeroes of polynomial,
f
(
x
)
=
0
⇒
x
2
+
7
x
+
10
=
0
⇒
x
2
+
5
x
+
2
x
+
10
=
0
⇒
(
x
+
2
)
(
x
+
5
)
=
0
∴
x
=
−
5
,
−
2
Therefore, the zeroes are
−
5
and
−
2.
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Standard XI Mathematics
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