Factor the polynomial completely. If the polynomial cannot be factored, write "prime."
-$x ^ { 2 } + 81$
A) $( x + 9 ) ^ { 2 }$
B) $( x - 9 ) ^ { 2 }$
C)(x + 9)(x - 9)
D)prime

Name: Factor the polynomial completely. If the polynomial cannot be factored, write "prime." -$x ^ { 2 } + 81$ A) $( x + 9 ) ^ { 2 }$ B) $( x - 9 ) ^ { 2 }$ C)(x + 9)(x - 9) D)prime
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Quizplus · Accepted Answer

The polynomial $x^2 + 81$ is a sum of squares, which cannot be factored over the real numbers.

Factor the Polynomial Completely x2+81x ^ { 2 } + 81x2+81

Factor the Polynomial Completely $x ^ { 2 } + 81$