a^4-11a^2+30=0

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Solution for a^4-11a^2+30=0 equation:


Simplifying
a4 + -11a2 + 30 = 0

Reorder the terms:
30 + -11a2 + a4 = 0

Solving
30 + -11a2 + a4 = 0

Solving for variable 'a'.

Factor a trinomial.
(5 + -1a2)(6 + -1a2) = 0

Subproblem 1

Set the factor '(5 + -1a2)' equal to zero and attempt to solve: Simplifying 5 + -1a2 = 0 Solving 5 + -1a2 = 0 Move all terms containing a to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -1a2 = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -1a2 = 0 + -5 -1a2 = 0 + -5 Combine like terms: 0 + -5 = -5 -1a2 = -5 Divide each side by '-1'. a2 = 5 Simplifying a2 = 5 Take the square root of each side: a = {-2.236067978, 2.236067978}

Subproblem 2

Set the factor '(6 + -1a2)' equal to zero and attempt to solve: Simplifying 6 + -1a2 = 0 Solving 6 + -1a2 = 0 Move all terms containing a to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + -1a2 = 0 + -6 Combine like terms: 6 + -6 = 0 0 + -1a2 = 0 + -6 -1a2 = 0 + -6 Combine like terms: 0 + -6 = -6 -1a2 = -6 Divide each side by '-1'. a2 = 6 Simplifying a2 = 6 Take the square root of each side: a = {-2.449489743, 2.449489743}

Solution

a = {-2.236067978, 2.236067978, -2.449489743, 2.449489743}

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