2. The weights (in kg) of 30 students in a class are as follows:
20, 30, 40, 2040, 50, 55, 60, 55, 30, 35, 20,40,55,50,60, 65,20,25,20,45,40,30,42,32,44,60.
20,30,35
grouped frequency distribution,
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Find the zeroes of the following quadratic
polynomials and verify the relation between the
zeroes and their coefficients (1-8):
1. x2 +7x + 10 2.2x2 -8x+6 INCERT)
3.x² – 3
INCERT)
d. 2x² – 3+ 5x
(CBSE OD 08]
5. 6x² – 3 – 7x (CDSE D 08; CBSE 2010)
6. 13 x2 -8x +413
(CBSE OD 080)
3
7. y2 + 15y-5
2
[Exemplar Problem]
11 2
8.
Y
3 3
[Exemplar Problem]
9. x2-3x-28
(CBSE D 17)
10. 2x2 –X-6
[CBSE OD 17) is the mexico kfjbyfbgib. Ruthless to the earth day
Find the zeroes of the following quadratic
polynomials and verify the relation between the
zeroes and their coefficients (1-8):
1. x2 +7x + 10 2.2x2 -8x+6 INCERT)
3.x² – 3
INCERT)
d. 2x² – 3+ 5x
(CBSE OD 08]
5. 6x² – 3 – 7x (CDSE D 08; CBSE 2010)
6. 13 x2 -8x +413
(CBSE OD 080)
3
7. y2 + 15y-5
2
[Exemplar Problem]
11 2
8.
Y
3 3
[Exemplar Problem]
9. x2-3x-28
(CBSE D 17)
10. 2x2 –X-6
[CBSE OD 17) is the mexico kfjbyfbgib. Ruthless to the earth day
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