Casio fx-3650P

7
04 Solutions to quadratic equations
The solutions to the quadratic equation are given by the formula:
In particular, when two real solutions exist,
when
= there is just one real solution and
when there are two complex solutions
Program
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２
－４ ＡＣ ＝０⇒ Ｇｏｔｏ １：（－ Ｂ －√（Ｂ
２
－４ ＡＣ））
÷２ Ａ → Ｍ：Ｍ Ｌｂｌ １：（－Ｂ＋√（Ｂ
２
－４ ＡＣ））÷２ Ａ → Ｍ：Ｍ ＜ 70 STEP ＞
Execution Example:
i) Find solutions to the equation .
ax
2
bx c++ 0=
x
b– b
2
4ac–±
2a
--------------------------------------=
b
2
4ac–0>
b
2
4ac–0
b
2
4ac–0<
ON
MODE MODE MODE
1
PRGM
MODE
2
CMPLX
1
P1
2x
2
4x–16–0=x24,–=()
Prog
1
CMPLX
S A
D R
P1
P1
P2 P3 P4 G
2
EXE
CMPLX
S A
D R P1
P1
P2 P3 P4 G
4
EXE
CMPLX
S A
D R P1
P1
P2 P3 P4 G
1 6
EXE
M CMPLX
Disp
S A
D R P1
P1
P2 P3 P4 G
EXE
M CMPLX
<>
S A
D R P1
P1
P2 P3 P4 G
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