Analysis and Approaches for IBDP Maths Ebook 1 | Page 13

Front Page
�
SUMMARY POINTs
Solving the quadratic equation
2
ax bx c
1. Factorization by cross method
2.
2
� � � 4
x � b b ac : Quadratic Formula
2a
3. Method of completing the square
� � � 0, where a � 0 :
2
�
The discriminant
2
� � b � 4ac
of
�� 0
�� 0
�� 0
2
ax bx c
� � � 0:
The quadratic equation has
two distinct real roots
The quadratic equation has
one double real root
The quadratic equation has
no real root
�
x -intercepts of a quadratic function
2
y � ax �bx � c : Roots of
2
ax bx c
� � � 0
Solutions of Chapter 2
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