Solution - Nonlinear equations
Other Ways to Solve:
Step by Step Solution
Reformatting the input :
Changes made to your input should not affect the solution:
(1): "m5" was replaced by "m^5".
Step by step solution :
Step 1 :
Equation at the end of step 1 :
(m2) - 22m5 = 0Step 2 :
Step 3 :
Pulling out like terms :
3.1 Pull out like factors :
m2 - 4m5 = -m2 • (4m3 - 1)
Trying to factor as a Difference of Cubes:
3.2 Factoring: 4m3 - 1
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 : 4 is not a cube !!
Ruling : Binomial can not be factored as the difference of two perfect cubes
Polynomial Roots Calculator :
3.3 Find roots (zeroes) of : F(m) = 4m3 - 1
Polynomial Roots Calculator is a set of methods aimed at finding values of m for which F(m)=0
Rational Roots Test is one of the above mentioned tools. It would only find Rational Roots that is numbers m 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 4 and the Trailing Constant is -1.
The factor(s) are:
of the Leading Coefficient : 1,2 ,4
of the Trailing Constant : 1
Let us test ....
P | Q | P/Q | F(P/Q) | Divisor | |||||
---|---|---|---|---|---|---|---|---|---|
-1 | 1 | -1.00 | -5.00 | ||||||
-1 | 2 | -0.50 | -1.50 | ||||||
-1 | 4 | -0.25 | -1.06 | ||||||
1 | 1 | 1.00 | 3.00 | ||||||
1 | 2 | 0.50 | -0.50 | ||||||
1 | 4 | 0.25 | -0.94 |
Polynomial Roots Calculator found no rational roots
Equation at the end of step 3 :
-m2 • (4m3 - 1) = 0
Step 4 :
Theory - Roots of a product :
4.1 A product of several terms equals zero.
When a product of two or more terms equals zero, then at least one of the terms must be zero.
We shall now solve each term = 0 separately
In other words, we are going to solve as many equations as there are terms in the product
Any solution of term = 0 solves product = 0 as well.
Solving a Single Variable Equation :
4.2 Solve : -m2 = 0
Multiply both sides of the equation by (-1) : m2 = 0
When two things are equal, their square roots are equal. Taking the square root of the two sides of the equation we get:
m = ± √ 0
Any root of zero is zero. This equation has one solution which is m = 0
Solving a Single Variable Equation :
4.3 Solve : 4m3-1 = 0
Add 1 to both sides of the equation :
4m3 = 1
Divide both sides of the equation by 4:
m3 = 1/4 = 0.250
When two things are equal, their cube roots are equal. Taking the cube root of the two sides of the equation we get:
m = ∛ 1/4
The equation has one real solution
This solution is m = ∛ 0.250 = 0.62996
Two solutions were found :
- m = ∛ 0.250 = 0.62996
- m = 0
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