Algebra 3 Solving Quadratic Equations Worksheet - Brunel University Page 2
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13Quadratic Equation
1. The definition and main notations.
The general form of quadratic equation is
2
x
+
x +
= 0
a
b
c
a, b, c
Where
are constants.
The function
2
f (x) = ax
+ bx + c
describes a parabola, which looks like this graph below.
6
2
f x 8x
3x 4
4
2
f x
a = 8
b = 3
0
c =
4
2
4
1
0.5
0
0.5
1
x
Zeros
of the quadratic function are
roots
(or solutions) of quadratic equation.
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