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Anton [14]
3 years ago
5

MATH HELP PLEASE 50 POINTS

Mathematics
2 answers:
Tamiku [17]3 years ago
7 0
This is my fav um...
a is 180 
B and C are acute 
A is obtuse
what are the anwers choices

Illusion [34]3 years ago
4 0
To find the length of a, you should use the Law of Cosines
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\qquad \qquad\huge \underline{\boxed{\sf Answer}}

Let's solve ~

\qquad \sf  \dashrightarrow \: (x {}^{3}  - 4x {}^{2}  + 1) + (3 {x}^{2}  + x)

\qquad \sf  \dashrightarrow \:  {x}^{3}  - 4 {x}^{2}  + 1 + 3 {x}^{2}  + x

\qquad \sf  \dashrightarrow \:  {x}^{3}  - 4 {x}^{2}  + 3x {}^{2}  + x + 1

\qquad \sf  \dashrightarrow \:  {x}^{3}  -  {x}^{2}  + x + 1

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