Question

Answer The Last Question​

Answer 1

Answer:

yes x+2 is its factor

Step-by-step explanation:

because if x+2 is factor then

on putting x=-2

(-2)^3 + 3(-2)^2 + 5(-2) + 6

-8 + 12 - 10 + 6 = 0

it mean x+2 is factor of given equation

Answer 2

Answer:

Solution

Here

f(x)= x³ + 3x² + 5x + 6

comparing (x+2) with (x-a) , then

a= -2

Now,

f(a) = x³ + 3x² + 5x + 6

f(-2) = (-2)³ + 3 * (-2)² + 5 * (-2) + 6

= -8 +12 - 10 + 6

= 0

so, (x+2) is the factor of f(x).