Answer:
STEP
1
:
Equation at the end of step 1
(((3 • (x3)) - (2•5x2)) - x) - 12
STEP
2
:
Equation at the end of step
2
:
((3x3 - (2•5x2)) - x) - 12
STEP
3
:
Checking for a perfect cube
3.1 3x3-10x2-x-12 is not a perfect cube
Trying to factor by pulling out :
3.2 Factoring: 3x3-10x2-x-12
Thoughtfully split the expression at hand into groups, each group having two terms :
Group 1: -x-12
Group 2: 3x3-10x2
Pull out from each group separately :
Group 1: (x+12) • (-1)
Group 2: (3x-10) • (x2)
