Form a Polynomial F(x) with Real Coefficients Having the Given $- 1,2$

question 310

Multiple Choice

Form a polynomial f(x) with real coefficients having the given degree and zeros.
-Degree: 4; zeros: $- 1,2$ , and $1 - 2 \mathrm { i }$ .

• A) \(f ( x ) = x ^ { 4 } - x ^ { 3 } + 3 x ^ { 2 } - 5 x - 10\)
• B) \(f ( x ) = x ^ { 4 } - 3 x ^ { 3 } - 3 x ^ { 2 } + 7 x + 6\)
• C) \(f ( x ) = x ^ { 4 } - x ^ { 3 } + x ^ { 2 } + 9 x - 10\)
• D) \(f ( x ) = x ^ { 4 } - 3 x ^ { 3 } + 5 x ^ { 2 } - x - 10\)

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