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4.16 Quadratic formula
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"f" left parenthesis, "x" , right parenthesis equals 10 "x" squared
f
x
=
1
0
x
2
"g" left parenthesis, "x" , right parenthesis equals 6 plus 9 "x"
g
x
=
6
+
9
x
"x" equals negative 0.4 4 6
x
=
−
0
.
4
4
6
"x" equals 1.3 4 6
x
=
1
.
3
4
6
"x"
x
"y"
y
"a" squared
a
2
"a" Superscript, "b" , Baseline
a
b
7
7
8
8
9
9
over
÷
functions
(
(
)
)
less than
<
greater than
>
4
4
5
5
6
6
times
×
| "a" |
|
a
|
,
,
less than or equal to
≤
greater than or equal to
≥
1
1
2
2
3
3
negative
−
A B C
StartRoot, , EndRoot
pi
π
0
0
.
.
equals
=
positive
+
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