m^4-16=

Solution for m^4-16= equation:

Simplifying
m4 + -16 = 0

Reorder the terms:
-16 + m4 = 0

Solving
-16 + m4 = 0

Solving for variable 'm'.

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

Add '16' to each side of the equation.
-16 + 16 + m4 = 0 + 16

Combine like terms: -16 + 16 = 0
0 + m4 = 0 + 16
m4 = 0 + 16

Combine like terms: 0 + 16 = 16
m4 = 16

Simplifying
m4 = 16

Reorder the terms:
-16 + m4 = 16 + -16

Combine like terms: 16 + -16 = 0
-16 + m4 = 0

Factor a difference between two squares.
(4 + m2)(-4 + m2) = 0

Factor a difference between two squares.
(4 + m2)((2 + m)(-2 + m)) = 0

Subproblem 1
Set the factor '(4 + m2)' equal to zero and attempt to solve:

Simplifying
4 + m2 = 0

Solving
4 + m2 = 0

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

Add '-4' to each side of the equation.
4 + -4 + m2 = 0 + -4

Combine like terms: 4 + -4 = 0
0 + m2 = 0 + -4
m2 = 0 + -4

Combine like terms: 0 + -4 = -4
m2 = -4

Simplifying
m2 = -4

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 '(2 + m)' equal to zero and attempt to solve:

Simplifying
2 + m = 0

Solving
2 + m = 0

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

Add '-2' to each side of the equation.
2 + -2 + m = 0 + -2

Combine like terms: 2 + -2 = 0
0 + m = 0 + -2
m = 0 + -2

Combine like terms: 0 + -2 = -2
m = -2

Simplifying
m = -2
Subproblem 3
Set the factor '(-2 + m)' equal to zero and attempt to solve:

Simplifying
-2 + m = 0

Solving
-2 + m = 0

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

Add '2' to each side of the equation.
-2 + 2 + m = 0 + 2

Combine like terms: -2 + 2 = 0
0 + m = 0 + 2
m = 0 + 2

Combine like terms: 0 + 2 = 2
m = 2

Simplifying
m = 2
Solution
m = {-2, 2}