Question

If (x + 1) is a factor of x³ + 2x² - 5x-6,then factorise it

Answer 1

Answer:

I don't know okay sorry

Answer 2

Answer:

p(x) =x^3+2x^2-5x-6

=>p(-1) =(-1)^3 + 2(-1)^2 -5(-1) -6

=-3 +2+5-6

= -1+1

=0

Hence,(x+1) is a factor of p(x).