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Show that (x+5) is a factor of the polynomialf(x)= x^3+x+3x+115 |
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Answer» X+5 = -5 F(-5) = - 5×3+(-5)+3×(-5)+115 = 15-2-110 =-97 X+5 is not a FACTOR of x^3+x+3x+115 |
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