Solution - Linear equations with one unknown
Other Ways to Solve
Linear equations with one unknownStep by Step Solution
Reformatting the input :
Changes made to your input should not affect the solution:
(1): "x9" was replaced by "x^9".
Rearrange:
Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :
x^9-(36)=0
Step by step solution :
Step 1 :
Trying to factor as a Difference of Cubes:
1.1 Factoring: x9-36
Theory : A difference of two perfect cubes, a3 - b3 can be factored into
(a-b) • (a2 +ab +b2)
Proof : (a-b)•(a2+ab+b2) =
a3+a2b+ab2-ba2-b2a-b3 =
a3+(a2b-ba2)+(ab2-b2a)-b3 =
a3+0+0-b3 =
a3-b3
Check : 36 is not a cube !!
Ruling : Binomial can not be factored as the difference of two perfect cubes
Polynomial Roots Calculator :
1.2 Find roots (zeroes) of : F(x) = x9-36
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 1 and the Trailing Constant is -36.
The factor(s) are:
of the Leading Coefficient : 1
of the Trailing Constant : 1 ,2 ,3 ,4 ,6 ,9 ,12 ,18 ,36
Let us test ....
| P | Q | P/Q | F(P/Q) | Divisor | |||||
|---|---|---|---|---|---|---|---|---|---|
| -1 | 1 | -1.00 | -37.00 | ||||||
| -2 | 1 | -2.00 | -548.00 | ||||||
| -3 | 1 | -3.00 | -19719.00 | ||||||
| -4 | 1 | -4.00 | -262180.00 | ||||||
| -6 | 1 | -6.00 | -10077732.00 |
Note - For tidiness, printing of 13 checks which found no root was suppressed
Polynomial Roots Calculator found no rational roots
Equation at the end of step 1 :
x9 - 36 = 0
Step 2 :
Solving a Single Variable Equation :
2.1 Solve : x9-36 = 0
Add 36 to both sides of the equation :
x9 = 36
x = 9th root of (36)
The equation has one real solution
This solution is x = 9th root of 36 = 1.4891
One solution was found :
x = 9th root of 36 = 1.4891How did we do?
Please leave us feedback.