find the value of X3+13x+30x+20
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Answered by
1
{Explanation:
All terms have an
x
in common, so we can factor that out first. We get
x
(
x
2
−
13
x
−
30
)
What I have in blue, I can factor by grouping. Here, I will rewrite the
b
term as the sum of two terms, so we can factor easily.
Our polynomial can be alternatively written as
x
(
x
2
+
2
x
−
15
x
−
30
)
Notice, the red terms are the same as
−
13
x
, so I didn't change the value of this expression.
x
(
x
2
+
2
x
−
15
x
−
30
)
I can factor an
x
out of the purple term, and a
−
15
out of the green term. Doing this, we get
x
(
x
(
x
+
2
)
−
15
(
x
+
2
)
)
Both the green and purple terms have an
x
+
2
in common, so I can factor that out. We get
x
(
x
−
15
)
(
x
+
2
)
as our final answer.
Hope this helps
thanks
take care
may God bless you and your family
Answered by
1
Answer:
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