Additional Mathematics Module 3 - Quadratic Equations Worksheets With Answer Key Page 22

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2.2.1 Form a quadratic equation with the roots
Exercises 1
Roots
Sum of
Product of
 and 
.the roots
.the roots
The puadratic equation

 
 
)x +  = 0
2
(
)
.x
– (
Example 1
2
3 , 2
5
6
x
– (5)x + 6 = 0
Example 2
 
 
1
1
1
3
11
3
2
, - 3
+ (-3)
(- 3) =
.x
x +
= 0
4
4
4
4
4
4
2
4x
+ 11x – 3 = 0
1 
12
11
=
=
4
4
a) 4 , -7
b)
1
2 ,
3
c)
1
1
,
3
2
d)
1
2
,
5
3
e)
6k
3k,
5
21

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