One of the factors of x^3 + 13x^2 + 31x - 45 is
a) x - 1
b) x - 5
c) x + 5
d) x + 9
Answers
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2
Answer:
your answer is no. a
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Answered by
0
Answer:
a)x-1=0
x=1
=(1)^3+13(1)^2+31(1)-45
=(1)+13(1)+31(1)-45
=1+13+31-45
=45-45
=0
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