Question

find the value of a2+b2, so the polynomial x3-ax2-13x+b has (x-1) and (x+3) as factors​

Answer 1

Answer:

x2 - 3x + 2 = x2 - 2x - x + 2 = x(x - 2) - 1(x - 2) = (x  - 1)(x - 2) .......

if x2 - 3x + 2 is a factor of the polynomial then ... x - 1 and x - 2 r also its factors ...

check out if the two r factor sor not by the same method .... if they r factors

---> then x2 - 3x + 2 is a factor of the polynomial ....