Factor the polynomial and use the factored form to find the zeros. (Enter your a

Algebra
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P(x) = x4 − 3x3 + 27x − 81

x = 
 
Mar 15th, 2015

P(x) = x^4 − 3x^3 + 27x − 81

x^4 − 3x^3 + 27x − 81 = 0

x^3(x - 3) + 27(x - 3) = 0

(x^3 + 27)(x - 3) = 0

(x + 3)(x^2 + 3x + 9)(x - 3) = 0

x = - 3   x = 3     x^2 + 3x = - 9

                           x(x + 3) = - 9

                          x = - 9       x = - 12

Mar 15th, 2015

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