posted by Rebekah on .
im stuck on factoring (x-1)(2x^3+13x^2+8x-35)
do i use synthetic division? if so what zero?
synthetic division would be an easy way to check for roots p/q where p divides 35 and q divides 2.
Check for whole roots first: 1,5,7,35
A little trial shows that
2x^3+13x^2+8x-35 = (x+5)(2x^2+3x-7)