4a^4=2-7a^2

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Solution for 4a^4=2-7a^2 equation:


Simplifying
4a4 = 2 + -7a2

Solving
4a4 = 2 + -7a2

Solving for variable 'a'.

Reorder the terms:
-2 + 7a2 + 4a4 = 2 + -7a2 + -2 + 7a2

Reorder the terms:
-2 + 7a2 + 4a4 = 2 + -2 + -7a2 + 7a2

Combine like terms: 2 + -2 = 0
-2 + 7a2 + 4a4 = 0 + -7a2 + 7a2
-2 + 7a2 + 4a4 = -7a2 + 7a2

Combine like terms: -7a2 + 7a2 = 0
-2 + 7a2 + 4a4 = 0

Factor a trinomial.
(-2 + -1a2)(1 + -4a2) = 0

Factor a difference between two squares.
(-2 + -1a2)((1 + 2a)(1 + -2a)) = 0

Subproblem 1

Set the factor '(-2 + -1a2)' equal to zero and attempt to solve: Simplifying -2 + -1a2 = 0 Solving -2 + -1a2 = 0 Move all terms containing a to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + -1a2 = 0 + 2 Combine like terms: -2 + 2 = 0 0 + -1a2 = 0 + 2 -1a2 = 0 + 2 Combine like terms: 0 + 2 = 2 -1a2 = 2 Divide each side by '-1'. a2 = -2 Simplifying a2 = -2 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 '(1 + 2a)' equal to zero and attempt to solve: Simplifying 1 + 2a = 0 Solving 1 + 2a = 0 Move all terms containing a to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + 2a = 0 + -1 Combine like terms: 1 + -1 = 0 0 + 2a = 0 + -1 2a = 0 + -1 Combine like terms: 0 + -1 = -1 2a = -1 Divide each side by '2'. a = -0.5 Simplifying a = -0.5

Subproblem 3

Set the factor '(1 + -2a)' equal to zero and attempt to solve: Simplifying 1 + -2a = 0 Solving 1 + -2a = 0 Move all terms containing a to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + -2a = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -2a = 0 + -1 -2a = 0 + -1 Combine like terms: 0 + -1 = -1 -2a = -1 Divide each side by '-2'. a = 0.5 Simplifying a = 0.5

Solution

a = {-0.5, 0.5}

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