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Simplifying 4x2 + 8x + 336 = 0 Reorder the terms: 336 + 8x + 4x2 = 0 Solving 336 + 8x + 4x2 = 0 Solving for variable 'x'. Factor out the Greatest Common Factor (GCF), '4'. 4(84 + 2x + x2) = 0 Ignore the factor 4.Subproblem 1
Set the factor '(84 + 2x + x2)' equal to zero and attempt to solve: Simplifying 84 + 2x + x2 = 0 Solving 84 + 2x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '-84' to each side of the equation. 84 + 2x + -84 + x2 = 0 + -84 Reorder the terms: 84 + -84 + 2x + x2 = 0 + -84 Combine like terms: 84 + -84 = 0 0 + 2x + x2 = 0 + -84 2x + x2 = 0 + -84 Combine like terms: 0 + -84 = -84 2x + x2 = -84 The x term is 2x. Take half its coefficient (1). Square it (1) and add it to both sides. Add '1' to each side of the equation. 2x + 1 + x2 = -84 + 1 Reorder the terms: 1 + 2x + x2 = -84 + 1 Combine like terms: -84 + 1 = -83 1 + 2x + x2 = -83 Factor a perfect square on the left side: (x + 1)(x + 1) = -83 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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