63a^2-21a^4=

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Solution for 63a^2-21a^4= equation:


Simplifying
63a2 + -21a4 = 0

Solving
63a2 + -21a4 = 0

Solving for variable 'a'.

Factor out the Greatest Common Factor (GCF), '21a2'.
21a2(3 + -1a2) = 0

Ignore the factor 21.

Subproblem 1

Set the factor 'a2' equal to zero and attempt to solve: Simplifying a2 = 0 Solving a2 = 0 Move all terms containing a to the left, all other terms to the right. Simplifying a2 = 0 Take the square root of each side: a = {0}

Subproblem 2

Set the factor '(3 + -1a2)' equal to zero and attempt to solve: Simplifying 3 + -1a2 = 0 Solving 3 + -1a2 = 0 Move all terms containing a to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -1a2 = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1a2 = 0 + -3 -1a2 = 0 + -3 Combine like terms: 0 + -3 = -3 -1a2 = -3 Divide each side by '-1'. a2 = 3 Simplifying a2 = 3 Take the square root of each side: a = {-1.732050808, 1.732050808}

Solution

a = {0, -1.732050808, 1.732050808}

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