Question

examine whether X + 2 in a factor of X upon 3 + 3 X upon 2 + 5 x + 6 and 2x + 4 no spam ​

Answer 1

Answer:

x+2 3x²+5x++6 2x+4.

Solution

x+2 -2.

,(-2) =(-2)³+3(-2)²+5(-2) +6=

= -8+12-10+6=0

, x+2 x³+3x²+5x+6

, (-2) =2(-2) +4=0

, x+2 2x+4.