5m^4-405=0

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Solution for 5m^4-405=0 equation:


Simplifying
5m4 + -405 = 0

Reorder the terms:
-405 + 5m4 = 0

Solving
-405 + 5m4 = 0

Solving for variable 'm'.

Move all terms containing m to the left, all other terms to the right.

Add '405' to each side of the equation.
-405 + 405 + 5m4 = 0 + 405

Combine like terms: -405 + 405 = 0
0 + 5m4 = 0 + 405
5m4 = 0 + 405

Combine like terms: 0 + 405 = 405
5m4 = 405

Divide each side by '5'.
m4 = 81

Simplifying
m4 = 81

Reorder the terms:
-81 + m4 = 81 + -81

Combine like terms: 81 + -81 = 0
-81 + m4 = 0

Factor a difference between two squares.
(9 + m2)(-9 + m2) = 0

Factor a difference between two squares.
(9 + m2)((3 + m)(-3 + m)) = 0

Subproblem 1

Set the factor '(9 + m2)' equal to zero and attempt to solve: Simplifying 9 + m2 = 0 Solving 9 + m2 = 0 Move all terms containing m to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + m2 = 0 + -9 Combine like terms: 9 + -9 = 0 0 + m2 = 0 + -9 m2 = 0 + -9 Combine like terms: 0 + -9 = -9 m2 = -9 Simplifying m2 = -9 The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined.

Subproblem 2

Set the factor '(3 + m)' equal to zero and attempt to solve: Simplifying 3 + m = 0 Solving 3 + m = 0 Move all terms containing m to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + m = 0 + -3 Combine like terms: 3 + -3 = 0 0 + m = 0 + -3 m = 0 + -3 Combine like terms: 0 + -3 = -3 m = -3 Simplifying m = -3

Subproblem 3

Set the factor '(-3 + m)' equal to zero and attempt to solve: Simplifying -3 + m = 0 Solving -3 + m = 0 Move all terms containing m to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + m = 0 + 3 Combine like terms: -3 + 3 = 0 0 + m = 0 + 3 m = 0 + 3 Combine like terms: 0 + 3 = 3 m = 3 Simplifying m = 3

Solution

m = {-3, 3}

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