(3x3 + 3x2 + 5x - 1) • (x - 1)
 ——————————————————————————————
       x + 1      Â
Step-by-step explanation:Step by Step Solution:
More Icon
STEP
1
:
Equation at the end of step 1
Â
STEP
2
:
Equation at the end of step
2
:
Â
STEP
3
:
      3x4 + 2x2 - 6x + 1
Simplify  ——————————————————
         x + 1   Â
Checking for a perfect cube :
3.1 Â Â 3x4 + 2x2 - 6x + 1 Â is not a perfect cube
Trying to factor by pulling out :
3.2 Â Â Â Factoring: Â 3x4 + 2x2 - 6x + 1
Thoughtfully split the expression at hand into groups, each group having two terms :
Group 1: Â -6x + 1
Group 2: Â 3x4 + 2x2
Pull out from each group separately :
Group 1:  (-6x + 1) • (1) = (6x - 1) • (-1)
Group 2:  (3x2 + 2) • (x2)
Bad news !! Factoring by pulling out fails :
The groups have no common factor and can not be added up to form a multiplication.
Polynomial Roots Calculator :
3.3 Â Â Find roots (zeroes) of : Â Â Â F(x) = 3x4 + 2x2 - 6x + 1
Polynomial Roots Calculator is a set of methods aimed at finding values of  x  for which  F(x)=0 Â
Rational Roots Test is one of the above mentioned tools. It would only find Rational Roots that is numbers  x  which can be expressed as the quotient of two integers
The Rational Root Theorem states that if a polynomial zeroes for a rational number  P/Q  then  P  is a factor of the Trailing Constant and  Q  is a factor of the Leading Coefficient
In this case, the Leading Coefficient is  3  and the Trailing Constant is  1.
The factor(s) are:
of the Leading Coefficient : Â 1,3
of the Trailing Constant : Â 1
Let us test
 P   Q   P/Q   F(P/Q)   Divisor
   -1    1     -1.00     12.00  Â
   -1    3     -0.33     3.26  Â
   1    1     1.00     0.00    x - 1
   1    3     0.33     -0.74  Â
The Factor Theorem states that if P/Q is root of a polynomial then this polynomial can be divided by q*x-p Note that q and p originate from P/Q reduced to its lowest terms
In our case this means that
 3x4 + 2x2 - 6x + 1
can be divided with  x - 1
Polynomial Long Division :
3.4 Â Â Polynomial Long Division
Dividing : Â 3x4 + 2x2 - 6x + 1
               ("Dividend")
By     :   x - 1   ("Divisor")
dividend   3x4    +  2x2  -  6x  +  1
- divisor  * 3x3   3x4  -  3x3      Â
remainder     3x3  +  2x2  -  6x  +  1
- divisor  * 3x2     3x3  -  3x2    Â
remainder       5x2  -  6x  +  1
- divisor  * 5x1       5x2  -  5x  Â
remainder        -  x  +  1
- divisor  * -x0        -  x  +  1
remainder           0
Quotient : Â 3x3+3x2+5x-1 Â Remainder: Â 0
Polynomial Roots Calculator :
3.5 Â Â Find roots (zeroes) of : Â Â Â F(x) = 3x3+3x2+5x-1
  See theory in step 3.3
In this case, the Leading Coefficient is  3  and the Trailing Constant is  -1.
The factor(s) are:
of the Leading Coefficient : Â 1,3
of the Trailing Constant : Â 1
Let us test
 P   Q   P/Q   F(P/Q)   Divisor
   -1    1     -1.00     -6.00  Â
   -1    3     -0.33     -2.44  Â
   1    1     1.00     10.00  Â
   1    3     0.33     1.11  Â
Polynomial Roots Calculator found no rational roots
Polynomial Long Division :
3.6 Â Â Polynomial Long Division
Dividing : Â 3x3+3x2+5x-1
               ("Dividend")
By     :   x+1   ("Divisor")
dividend   3x3  +  3x2  +  5x  -  1
- divisor  * 3x2   3x3  +  3x2    Â
remainder       5x  -  1
- divisor  * 0x1        Â
remainder       5x  -  1
- divisor  * 5x0       5x  +  5
remainder        -  6
Quotient : Â 3x2+5
Remainder : Â -6