if the polynomial x cube minus x square - 13 x + b has X - 1 and x plus 3 as a factor the values of A and B are
if the polynomial x cube minus x square - 13 x + b has X - 1 and x plus 3 as a factor the values of A and B are
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Answer:
let x=1
p (x)= 1cube -1 square-13 (1)+b
1-1-13+b
-15+b=0
b=15
let x=-3
p (x)=-3cube-(-3)square- 13 (-3)+b
-27-9+39+b
-36+39+b
3+b=0
b=3