-10x^4-17x^2+20=0

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Solution for -10x^4-17x^2+20=0 equation:


Simplifying
-10x4 + -17x2 + 20 = 0

Reorder the terms:
20 + -17x2 + -10x4 = 0

Solving
20 + -17x2 + -10x4 = 0

Solving for variable 'x'.

Factor a trinomial.
(4 + -5x2)(5 + 2x2) = 0

Subproblem 1

Set the factor '(4 + -5x2)' equal to zero and attempt to solve: Simplifying 4 + -5x2 = 0 Solving 4 + -5x2 = 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 + -5x2 = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -5x2 = 0 + -4 -5x2 = 0 + -4 Combine like terms: 0 + -4 = -4 -5x2 = -4 Divide each side by '-5'. x2 = 0.8 Simplifying x2 = 0.8 Take the square root of each side: x = {-0.894427191, 0.894427191}

Subproblem 2

Set the factor '(5 + 2x2)' equal to zero and attempt to solve: Simplifying 5 + 2x2 = 0 Solving 5 + 2x2 = 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 + 2x2 = 0 + -5 Combine like terms: 5 + -5 = 0 0 + 2x2 = 0 + -5 2x2 = 0 + -5 Combine like terms: 0 + -5 = -5 2x2 = -5 Divide each side by '2'. x2 = -2.5 Simplifying x2 = -2.5 The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined.

Solution

x = {-0.894427191, 0.894427191}

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