(x*x)*8-10x+4=0

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Solution for (x*x)*8-10x+4=0 equation: 


Simplifying
(x * x) * 8 + -10x + 4 = 0

Multiply x * x
(x2) * 8 + -10x + 4 = 0

Reorder the terms for easier multiplication:
8x2 + -10x + 4 = 0

Reorder the terms:
4 + -10x + 8x2 = 0

Solving
4 + -10x + 8x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '2'.
2(2 + -5x + 4x2) = 0

Ignore the factor 2.

Subproblem 1
Set the factor '(2 + -5x + 4x2)' equal to zero and attempt to solve:

Simplifying
2 + -5x + 4x2 = 0

Solving
2 + -5x + 4x2 = 0

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

Divide each side by '4'.
0.5 + -1.25x + x2 = 0

Move the constant term to the right:

Add '-0.5' to each side of the equation.
0.5 + -1.25x + -0.5 + x2 = 0 + -0.5

Reorder the terms:
0.5 + -0.5 + -1.25x + x2 = 0 + -0.5

Combine like terms: 0.5 + -0.5 = 0.0
0.0 + -1.25x + x2 = 0 + -0.5
-1.25x + x2 = 0 + -0.5

Combine like terms: 0 + -0.5 = -0.5
-1.25x + x2 = -0.5

The x term is -1.25x.  Take half its coefficient (-0.625).
Square it (0.390625) and add it to both sides.

Add '0.390625' to each side of the equation.
-1.25x + 0.390625 + x2 = -0.5 + 0.390625

Reorder the terms:
0.390625 + -1.25x + x2 = -0.5 + 0.390625

Combine like terms: -0.5 + 0.390625 = -0.109375
0.390625 + -1.25x + x2 = -0.109375

Factor a perfect square on the left side:
(x + -0.625)(x + -0.625) = -0.109375

Can't calculate square root of the right side.

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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