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Simplifying x2 + (x + 8)(x + 8) = 0 Reorder the terms: x2 + (8 + x)(x + 8) = 0 Reorder the terms: x2 + (8 + x)(8 + x) = 0 Multiply (8 + x) * (8 + x) x2 + (8(8 + x) + x(8 + x)) = 0 x2 + ((8 * 8 + x * 8) + x(8 + x)) = 0 x2 + ((64 + 8x) + x(8 + x)) = 0 x2 + (64 + 8x + (8 * x + x * x)) = 0 x2 + (64 + 8x + (8x + x2)) = 0 Combine like terms: 8x + 8x = 16x x2 + (64 + 16x + x2) = 0 Reorder the terms: 64 + 16x + x2 + x2 = 0 Combine like terms: x2 + x2 = 2x2 64 + 16x + 2x2 = 0 Solving 64 + 16x + 2x2 = 0 Solving for variable 'x'. Factor out the Greatest Common Factor (GCF), '2'. 2(32 + 8x + x2) = 0 Ignore the factor 2.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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