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Byju's Answer
Standard X
Mathematics
Nature of Roots
The root of a...
Question
The root of a quadratic equation are 5 and −2. Then, the equation is
(a)
x
2
-
3
x
+
10
=
0
(b)
x
2
-
3
x
-
10
=
0
(c)
x
2
+
3
x
-
10
=
0
(d)
x
2
+
3
x
+
10
=
0
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Solution
(b)
x
2
-
3
x
-
10
=
0
It is given that the roots of the quadratic equation are 5 and
−
2
.
Then, the equation is:
x
2
−
(
5
−
2
)
x
+
5
×
(
−
2
)
=
0
⇒
x
2
−
3
x
−
10
=
0
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