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Standard X
Mathematics
Formation of a Quadratic Equation From It's Roots
The number of...
Question
The number of quadratic polynomials whose zeroes are 2 and – 3, is __________.
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Solution
Quadratic polynomial with given zeroes is
x
2
– (sum of zeroes)x + (product of zeroes)
=
x
2
-
-
3
+
2
x
+
-
3
×
2
=
x
2
-
-
1
x
+
-
6
=
x
2
+
x
-
6
Hence, the number of quadratic polynomials whose zeroes are 2 and – 3, is
one
.
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