factorize a³-a²-2a+8
Answers
Answered by
0
Step-by-step explanation:
Put everything to one side of the equation:
a
3
−
2
a
2
−
4
a
+
8
=
0
Factor out a common factor from two groups: the first 2 terms and last 2 terms.
a
2
(
a
−
2
)
−
4
(
a
−
2
)
=
0
(
a
2
−
4
)
(
a
−
2
)
=
0
(
a
+
2
)
(
a
−
2
)
(
a
−
2
)
=
0
a
=
−
2
and
2
The polynomial is completely factored and the solution set is
a
=
±
2
.
Hopefully this helps.
Similar questions