The graph of
y
=
−
x
2
−
4
x
+
8
\displaystyle {y}=-{x}^{{2}}-{4}{x}+{8}
y
=
−
x
2
−
4
x
+
8
is shown below. Use the graph to solve the equation
−
x
2
−
4
x
+
8
=
13
\displaystyle -{x}^{{2}}-{4}{x}+{8}={13}
−
x
2
−
4
x
+
8
=
13
.
1
2
3
4
5
6
7
-1
-2
-3
-4
-5
-6
-7
1
2
3
4
5
6
7
8
9
10
11
12
13
14
-1
-2
-3
-4
-5
Enter the solution(s) in the box below. If there is more than 1 solution, separate the values with a comma (example: -3, 2). If there are no solutions, enter DNE for Does Not Exist.
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\displaystyle