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ASSESSMENT Quadratic Formula Scaffolded
Contributed by: Redhill
(Original author: Tsygan)
Quadratic Formula:
a =          b =         c =

x2 + 5x + 5 = 0

Fill in the blanks

Plug the a,b, and c values into the quadratic formula:

a =

b =

c =

±
-

1

5

5

x2 + 5x + 5 = 0

±
2

Quadratic

Formula:

-
*
2
-
=
4
*
±
*
Quadratic Formula:
a =          b =         c =

9x2 -4x - 2 = 0

Fill in the blanks

Plug the a,b, and c values into the quadratic formula:

a =

b =

c =

±
-

9

-4

-2

9x2  -4x -2 = 0

±
2

Quadratic

Formula:

+
*
2
-
=
4
*
±
*
Factor the Radical
=
4
You should have the following from the previous page
±
18
±
88
=
Divide each term except for Radical
4
±
18
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