Answer:
If any individual factor on the left side of the equation is equal to
0
, the entire expression will be equal to
0
.
k
+
1
=
0
k
−
5
=
0
Set the first factor equal to
0
and solve.
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k
=
−
1
Set the next factor equal to
0
and solve.
Tap for more steps...
k
=
5
The final solution is all the values that make
(
k
+
1
)
(
k
−
5
)
=
0
true.
k
=
−
1
,
5
