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Completing the Square
供稿人: Whitlock
x2+6x+
(x+
x+
Solve the quadratic by completing the square.  
Fill in the blanks with the appropriate steps.  
x =
x2+6x=-8
smaller #
)2=
=
1 and -1
and x=
=-8+
larger #
x2-2x+
(x-
x-
Solve the quadratic by completing the square.  
Fill in the blanks with the appropriate steps.  
x =

x2-2x=3

smaller #
)2=
=
2 and -2
and x=
=3+
larger #
x2+6x+
(x+
x+
Solve the quadratic by completing the square.  
Fill in the blanks with the appropriate steps.  
x =

x2+6x=135

smaller #
)2=
=
12 and -12
and x=
=135+
larger #
x2+4x+
(x+
x+
Solve the quadratic by completing the square.  
Fill in the blanks with the appropriate steps.  
x =

x2+4x=-4

)2=
=
=-4 +
x2+6x+
(x+
x+
Solve the quadratic by completing the square.  
Fill in the blanks with the appropriate steps.  

x2+6x=-41

Choose the best solution

from the choices provided

=
)2=
√-32 and -√-32
=-41+

-3±4i√2

±i√32

±4i√2

-3±8i√2

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