(x^2-5)(3x^2+4)=0

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Solution for (x^2-5)(3x^2+4)=0 equation:


Simplifying
(x2 + -5)(3x2 + 4) = 0

Reorder the terms:
(-5 + x2)(3x2 + 4) = 0

Reorder the terms:
(-5 + x2)(4 + 3x2) = 0

Multiply (-5 + x2) * (4 + 3x2)
(-5(4 + 3x2) + x2(4 + 3x2)) = 0
((4 * -5 + 3x2 * -5) + x2(4 + 3x2)) = 0
((-20 + -15x2) + x2(4 + 3x2)) = 0
(-20 + -15x2 + (4 * x2 + 3x2 * x2)) = 0
(-20 + -15x2 + (4x2 + 3x4)) = 0

Combine like terms: -15x2 + 4x2 = -11x2
(-20 + -11x2 + 3x4) = 0

Solving
-20 + -11x2 + 3x4 = 0

Solving for variable 'x'.

Factor a trinomial.
(-4 + -3x2)(5 + -1x2) = 0

Subproblem 1

Set the factor '(-4 + -3x2)' equal to zero and attempt to solve: Simplifying -4 + -3x2 = 0 Solving -4 + -3x2 = 0 Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + -3x2 = 0 + 4 Combine like terms: -4 + 4 = 0 0 + -3x2 = 0 + 4 -3x2 = 0 + 4 Combine like terms: 0 + 4 = 4 -3x2 = 4 Divide each side by '-3'. x2 = -1.333333333 Simplifying x2 = -1.333333333 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 '(5 + -1x2)' equal to zero and attempt to solve: Simplifying 5 + -1x2 = 0 Solving 5 + -1x2 = 0 Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -1x2 = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -1x2 = 0 + -5 -1x2 = 0 + -5 Combine like terms: 0 + -5 = -5 -1x2 = -5 Divide each side by '-1'. x2 = 5 Simplifying x2 = 5 Take the square root of each side: x = {-2.236067978, 2.236067978}

Solution

x = {-2.236067978, 2.236067978}

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