Press MODE 3 times Press 1 [EQN] Right click on REPLAY button and press 2 [Degree] On screen,

?a Press 1=

?b Press 6=

?c Press 8=

The solutions are

21 x

Press =

42 x

4,2

042

02

xx

xx

cbxax

02 cbxax

086

86

2

2

xx

xx

02 x 04 x

Rewrite the quadratic equation in general form.

Identify the values of a, b, and c.

Write two linear expressions.

The values from calculator.

02 cbxax

Example 2

Rewrite the quadratic equation in general form.

Press MODE 3 times Press 1 [EQN] Right click on REPLAY button and press 2 [Degree] On screen,

?a Press 5=

?b Press −1=

?c Press −4=

The solutions are

11 x

Press =

5

42 x

5

4,1

0451

02

xx

xx

cbxax

02 cbxax

045

4453

41

53

2

2

2

xx

xxx

x

xx

01x

045

45

x

x

Identify the values of a, b, and c.

Write two linear expressions.

The values from calculator.

Example 3

0252

2722

2712

2

2

2

xx

xxx

xxx

2

1,2

0122

02

xx

xx

cbxax

Rewrite the quadratic equation in general form.

Identify the values of a, b, and c.

Write two linear expressions.

The values from calculator.

02 x

012

12

x

x

Press MODE 3 times Press 1 [EQN] Right click on REPLAY button and press 2 [Degree] On screen,

?a Press 2=

?b Press −5=

?c Press 2=

The solutions are

21 x

Press =

2

12 x

02 cbxax