The polynomial p(x)=x^3-7x-6p(x)=x
3
−7x−6p, left parenthesis, x, right parenthesis, equals, x, cubed, minus, 7, x, minus, 6 has a known factor of (x+1)(x+1)left parenthesis, x, plus, 1, right parenthesis.
Rewrite p(x)p(x)p, left parenthesis, x, right parenthesis as a product of linear factors.
p(x)=p(x)=