Factor the Polynomial Completely $7 x ^ { 2 } - 21 x z - 28 z ^ { 2 }$

question 31

Multiple Choice

Factor the polynomial completely.
- $7 x ^ { 2 } - 21 x z - 28 z ^ { 2 }$

• A) \(7 ( x - z ) ( x + 4 z )\)
• B) \(7 ( x + z ) ( x - 4 z )\)
• C) \(( 7 x - 7 z ) ( x + 4 z )\)
• D) prime polynomial

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