Solving Quadratic Equations By The Quadratic Formula Worksheet Page 5

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*Quadratic formula
a
*Plug in values found above for
, b,
c
and
*Simplify
i
*Square root of a negative 1 is
Example 11
: Solve
by using the quadratic formula.
Step 1:
Simplify
each side if needed.
This quadratic equation is already simplified.
Step 2:
Write in standard form,
, if needed.
x
x
*Inverse of add. 6
is sub. 6
*Quad. eq. in standard form
Step 3:
Identify a, b, and
c.
5

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