-84x^4=7x^2

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Solution for -84x^4=7x^2 equation:


Simplifying
-84x4 = 7x2

Solving
-84x4 = 7x2

Solving for variable 'x'.

Reorder the terms:
-7x2 + -84x4 = 7x2 + -7x2

Combine like terms: 7x2 + -7x2 = 0
-7x2 + -84x4 = 0

Factor out the Greatest Common Factor (GCF), '-7x2'.
-7x2(1 + 12x2) = 0

Ignore the factor -7.

Subproblem 1

Set the factor 'x2' equal to zero and attempt to solve: Simplifying x2 = 0 Solving x2 = 0 Move all terms containing x to the left, all other terms to the right. Simplifying x2 = 0 Take the square root of each side: x = {0}

Subproblem 2

Set the factor '(1 + 12x2)' equal to zero and attempt to solve: Simplifying 1 + 12x2 = 0 Solving 1 + 12x2 = 0 Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + 12x2 = 0 + -1 Combine like terms: 1 + -1 = 0 0 + 12x2 = 0 + -1 12x2 = 0 + -1 Combine like terms: 0 + -1 = -1 12x2 = -1 Divide each side by '12'. x2 = -0.08333333333 Simplifying x2 = -0.08333333333 The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined.

Solution

x = {0}

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