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Simplifying z2 + -16z + 260 = 0 Reorder the terms: 260 + -16z + z2 = 0 Solving 260 + -16z + z2 = 0 Solving for variable 'z'. Begin completing the square. Move the constant term to the right: Add '-260' to each side of the equation. 260 + -16z + -260 + z2 = 0 + -260 Reorder the terms: 260 + -260 + -16z + z2 = 0 + -260 Combine like terms: 260 + -260 = 0 0 + -16z + z2 = 0 + -260 -16z + z2 = 0 + -260 Combine like terms: 0 + -260 = -260 -16z + z2 = -260 The z term is -16z. Take half its coefficient (-8). Square it (64) and add it to both sides. Add '64' to each side of the equation. -16z + 64 + z2 = -260 + 64 Reorder the terms: 64 + -16z + z2 = -260 + 64 Combine like terms: -260 + 64 = -196 64 + -16z + z2 = -196 Factor a perfect square on the left side: (z + -8)(z + -8) = -196 Can't calculate square root of the right side. The solution to this equation could not be determined.
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