Solution - Simplification or other simple results
Other Ways to Solve
Simplification or other simple resultsStep by Step Solution
Step 1 :
Equation at the end of step 1 :
(((24•(x11))+(4•(x10)))-(6•(x9)))+2x8Step 2 :
Equation at the end of step 2 :
(((24•(x11))+(4•(x10)))-(2•3x9))+2x8Step 3 :
Equation at the end of step 3 :
(((24 • (x11)) + 22x10) - (2•3x9)) + 2x8Step 4 :
Equation at the end of step 4 :
(((23•3x11) + 22x10) - (2•3x9)) + 2x8
Step 5 :
Step 6 :
Pulling out like terms :
6.1 Pull out like factors :
24x11 + 4x10 - 6x9 + 2x8 =
2x8 • (12x3 + 2x2 - 3x + 1)
Checking for a perfect cube :
6.2 12x3 + 2x2 - 3x + 1 is not a perfect cube
Trying to factor by pulling out :
6.3 Factoring: 12x3 + 2x2 - 3x + 1
Thoughtfully split the expression at hand into groups, each group having two terms :
Group 1: -3x + 1
Group 2: 12x3 + 2x2
Pull out from each group separately :
Group 1: (-3x + 1) • (1) = (3x - 1) • (-1)
Group 2: (6x + 1) • (2x2)
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 :
6.4 Find roots (zeroes) of : F(x) = 12x3 + 2x2 - 3x + 1
Polynomial Roots Calculator is a set of methods aimed at finding values of x for which F(x)=0
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 12 and the Trailing Constant is 1.
The factor(s) are:
of the Leading Coefficient : 1,2 ,3 ,4 ,6 ,12
of the Trailing Constant : 1
Let us test ....
P | Q | P/Q | F(P/Q) | Divisor | |||||
---|---|---|---|---|---|---|---|---|---|
-1 | 1 | -1.00 | -6.00 | ||||||
-1 | 2 | -0.50 | 1.50 | ||||||
-1 | 3 | -0.33 | 1.78 | ||||||
-1 | 4 | -0.25 | 1.69 | ||||||
-1 | 6 | -0.17 | 1.50 | ||||||
-1 | 12 | -0.08 | 1.26 | ||||||
1 | 1 | 1.00 | 12.00 | ||||||
1 | 2 | 0.50 | 1.50 | ||||||
1 | 3 | 0.33 | 0.67 | ||||||
1 | 4 | 0.25 | 0.56 | ||||||
1 | 6 | 0.17 | 0.61 | ||||||
1 | 12 | 0.08 | 0.77 |
Polynomial Roots Calculator found no rational roots
Final result :
2x8 • (12x3 + 2x2 - 3x + 1)
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