Question

Find the values of a if
x+ 3 is a factor of X3+2x2+6x+a.​

Answer 1

Step-by-step explanation:

Step 1 :

Equation at the end of step 1 :

Step 2 :

x3 - 2x2 + 6x - 3

Simplify —————————————————

x - 1

Checking for a perfect cube :

2.1 x3 - 2x2 + 6x - 3 is not a perfect cube

Trying to factor by pulling out :

2.2 Factoring: x3 - 2x2 + 6x - 3

Thoughtfully split the expression at hand into groups, each group having two terms :

Group 1: 6x - 3

Group 2: -2x2 + x3

Pull out from each group separately :

Group 1: (2x - 1) • (3)

Group 2: (x - 2) • (x2)