Quadratic Equations Worksheet Page 3
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4Name:
Group:
Date:
Activity 3: Quadratic Equations
You can solve a quadratic equation using this the special quadratic formula:
Just plug the values of a, b and c , and do the calculations.
a) Solve these equations using the quadratic formula:
Equation
a
b
c
Formula
Solution 1 Solution 2
2
x
- 3x + 2 = 0
2
x
- x - 2 = 0
2
2x
- 6 = 4x
2
x
- x = 20
b) Now, practice the formula with these equations:
Equation
a
b
c
Formula
Solution 1
Solution 2
"
��
− 5�� + 6 = 0
"
2��
− 4�� + 2 = 0
"
−��
+ 4�� − 7 = 0
c) Did you find anything strange while doing the exercise above? Talk with your partner
and write a short paragraph explaining your ideas.
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