Factor the Four-Term Polynomial by Grouping $x ^ { 3 } + 7 x + x ^ { 2 } + 7$

question 9

Multiple Choice

Factor the four-term polynomial by grouping.
- $x ^ { 3 } + 7 x + x ^ { 2 } + 7$

• A) \(\left( x ^ { 2 } + 7 \right) ( x + 1 )\)
• B) \(\left( x ^ { 2 } + 1 \right) ( 7 x + 1 )\)
• C) \(\left( x ^ { 2 } + 1 \right) ( x + 7 )\)
• D) \(( 7 x + 1 ) ( x + 1 )\)

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