Answer:
x=7
x=5
x=−3
Step-by-step explanation:
0-(x^3-9*x^2-x+105)=0
Step by step solution :
STEP
1
:
Equation at the end of step 1
0 - ((((x3) - 32x2) - x) + 105) = 0
STEP
2
:
Checking for a perfect cube
2.1 -x3+9x2+x-105 is not a perfect cube
Trying to factor by pulling out :
2.2 Factoring: -x3+9x2+x-105
Thoughtfully split the expression at hand into groups, each group having two terms :
Group 1: x-105
Group 2: -x3+9x2
Pull out from each group separately :
Group 1: (x-105) • (1)
Group 2: (x-9) • (-x2)
