Solving Quadratic Equations By The Quadratic Formula Worksheet Page 12
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16Step 3:
Identify a, b, and
c.
a,
x
the number in front of
squared, is -5.
b
x
, the number in front of
, is 7.
c
, the constant, is 0.
Note that since the constant is missing it is understood to be 0.
Make sure that you keep the sign that is in front of each of these
numbers.
Step 4:
Plug the values found in step 3 into the
discriminant,
.
AND
Step 5:
Simplify if possible.
*Discriminant formula
a
c
*Plug in values found above for
, b, and
*Discriminant
Since the discriminant is a positive number, that means there are
two distinct real number solutions.
12
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