48=x^4-5x^2+4

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Solution for 48=x^4-5x^2+4 equation:


Simplifying
48 = x4 + -5x2 + 4

Reorder the terms:
48 = 4 + -5x2 + x4

Solving
48 = 4 + -5x2 + x4

Solving for variable 'x'.

Combine like terms: 48 + -4 = 44
44 + 5x2 + -1x4 = 4 + -5x2 + x4 + -4 + 5x2 + -1x4

Reorder the terms:
44 + 5x2 + -1x4 = 4 + -4 + -5x2 + 5x2 + x4 + -1x4

Combine like terms: 4 + -4 = 0
44 + 5x2 + -1x4 = 0 + -5x2 + 5x2 + x4 + -1x4
44 + 5x2 + -1x4 = -5x2 + 5x2 + x4 + -1x4

Combine like terms: -5x2 + 5x2 = 0
44 + 5x2 + -1x4 = 0 + x4 + -1x4
44 + 5x2 + -1x4 = x4 + -1x4

Combine like terms: x4 + -1x4 = 0
44 + 5x2 + -1x4 = 0

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
-44 + -5x2 + x4 = 0

Move the constant term to the right:

Add '44' to each side of the equation.
-44 + -5x2 + 44 + x4 = 0 + 44

Reorder the terms:
-44 + 44 + -5x2 + x4 = 0 + 44

Combine like terms: -44 + 44 = 0
0 + -5x2 + x4 = 0 + 44
-5x2 + x4 = 0 + 44

Combine like terms: 0 + 44 = 44
-5x2 + x4 = 44

The x term is -5x2.  Take half its coefficient (-2.5).
Square it (6.25) and add it to both sides.

Add '6.25' to each side of the equation.
-5x2 + 6.25 + x4 = 44 + 6.25

Reorder the terms:
6.25 + -5x2 + x4 = 44 + 6.25

Combine like terms: 44 + 6.25 = 50.25
6.25 + -5x2 + x4 = 50.25

Factor a perfect square on the left side:
(x2 + -2.5)(x2 + -2.5) = 50.25

Calculate the square root of the right side: 7.088723439

Break this problem into two subproblems by setting 
(x2 + -2.5) equal to 7.088723439 and -7.088723439.

Subproblem 1

x2 + -2.5 = 7.088723439 Simplifying x2 + -2.5 = 7.088723439 Reorder the terms: -2.5 + x2 = 7.088723439 Solving -2.5 + x2 = 7.088723439 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.5' to each side of the equation. -2.5 + 2.5 + x2 = 7.088723439 + 2.5 Combine like terms: -2.5 + 2.5 = 0.0 0.0 + x2 = 7.088723439 + 2.5 x2 = 7.088723439 + 2.5 Combine like terms: 7.088723439 + 2.5 = 9.588723439 x2 = 9.588723439 Simplifying x2 = 9.588723439 Take the square root of each side: x = {-3.096566395, 3.096566395}

Subproblem 2

x2 + -2.5 = -7.088723439 Simplifying x2 + -2.5 = -7.088723439 Reorder the terms: -2.5 + x2 = -7.088723439 Solving -2.5 + x2 = -7.088723439 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.5' to each side of the equation. -2.5 + 2.5 + x2 = -7.088723439 + 2.5 Combine like terms: -2.5 + 2.5 = 0.0 0.0 + x2 = -7.088723439 + 2.5 x2 = -7.088723439 + 2.5 Combine like terms: -7.088723439 + 2.5 = -4.588723439 x2 = -4.588723439 Simplifying x2 = -4.588723439 Reorder the terms: 4.588723439 + x2 = -4.588723439 + 4.588723439 Combine like terms: -4.588723439 + 4.588723439 = 0.000000000 4.588723439 + x2 = 0.000000000 The solution to this equation could not be determined.This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.

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