Question

find the value of a and b if x-1 and x+3 are the factors of p(x) = x^3-ax^2-13x+b

Answer 1

Answer:

a=(-24)  b=1/2

Step-by-step explanation:

by factor theoram

p(1)=-1a+b=12------------------1

p(-3)=-9a+b=(-12)-------------2

subtract 2 from 1

a=(-24)

then put -24 in -1a+b=(-12)

b=1/2