8x^2+64x+256=0

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Solution for 8x^2+64x+256=0 equation:


Simplifying
8x2 + 64x + 256 = 0

Reorder the terms:
256 + 64x + 8x2 = 0

Solving
256 + 64x + 8x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '8'.
8(32 + 8x + x2) = 0

Ignore the factor 8.

Subproblem 1

Set the factor '(32 + 8x + x2)' equal to zero and attempt to solve: Simplifying 32 + 8x + x2 = 0 Solving 32 + 8x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '-32' to each side of the equation. 32 + 8x + -32 + x2 = 0 + -32 Reorder the terms: 32 + -32 + 8x + x2 = 0 + -32 Combine like terms: 32 + -32 = 0 0 + 8x + x2 = 0 + -32 8x + x2 = 0 + -32 Combine like terms: 0 + -32 = -32 8x + x2 = -32 The x term is 8x. Take half its coefficient (4). Square it (16) and add it to both sides. Add '16' to each side of the equation. 8x + 16 + x2 = -32 + 16 Reorder the terms: 16 + 8x + x2 = -32 + 16 Combine like terms: -32 + 16 = -16 16 + 8x + x2 = -16 Factor a perfect square on the left side: (x + 4)(x + 4) = -16 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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