The polynomial p(x) is, p(x)= x3-5x2-8x+48.Use the Factor Theorem to show that (x + 3)is a factor of p(X)
First of all it is using the factor theorem.
so need to use that to show it is a factor
We do this by P of (-3) should = 0
So substitute x with -3
p(-3)= (-3)3 - 5 (-3)2- (-3)8 + 48
= 0
-27-45+24+48=0
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