Solving Quadratic Equations By The Quadratic Formula Worksheet Page 11
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1
2
3
4
5
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7
8
9
10
11
12
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14
15
16numbers.
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 zero, that means there is only one real
number solution.
Example 14
: Find the discriminant. Based on the discriminate,
indicate how many and what type of solutions there would be.
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 sub. 7
is add. 7
*Quad. eq. in standard form
11
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