X1 =
X2 =
ABSTRACT
Quadratic Equation:
Ax2+Bx+C=0
has a general solution:
x1= -(B+SQRT((B)2 - 4AC))/2A;
x2= -(B-SQRT((B)2
- 4AC))/2A;
where both roots could be Real or Imaginary. If
A=
0
quadratic equation itransorms to the linear.
Usage Tips
1). If Text box
A is empty, system will automatically assign
number 1 to
A, so the Equation will become the equivalent
of
x2+Bx+C=0.
2). If Text box
B is empty, system will
assign 0 to
B, so the Equation will become equivalent to
Ax2+C=0.
3). If Text box
C is empty, system will assign
0 to
C, so the Equation will become equivalent to
Ax2+Bx = 0.
4). Equation
Ax2-Bx+C=0
is equivalent to
Ax2+(-B)x+C=0,
so in order to solve this equation negative -B could be entered in a Text Box.
The alternative way is to use DropDowns, which allow to select either "+" or "-"
signs between the terms.
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