Show that x+3 in a factor of 69+11x -x^2 +x^3
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x+3=0
x=-3
69 + 11x - x^2 + x^3
69 + 11(-3) - (-3)^2 + -3^3
69 + -33 + 9 - 27 = 0
Therefore, x+3 is a factor of 69 + 11x -x^2 + x^3
x=-3
69 + 11x - x^2 + x^3
69 + 11(-3) - (-3)^2 + -3^3
69 + -33 + 9 - 27 = 0
Therefore, x+3 is a factor of 69 + 11x -x^2 + x^3
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