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Simplifying x2 + -140x + 7500 = 0 Reorder the terms: 7500 + -140x + x2 = 0 Solving 7500 + -140x + x2 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '-7500' to each side of the equation. 7500 + -140x + -7500 + x2 = 0 + -7500 Reorder the terms: 7500 + -7500 + -140x + x2 = 0 + -7500 Combine like terms: 7500 + -7500 = 0 0 + -140x + x2 = 0 + -7500 -140x + x2 = 0 + -7500 Combine like terms: 0 + -7500 = -7500 -140x + x2 = -7500 The x term is -140x. Take half its coefficient (-70). Square it (4900) and add it to both sides. Add '4900' to each side of the equation. -140x + 4900 + x2 = -7500 + 4900 Reorder the terms: 4900 + -140x + x2 = -7500 + 4900 Combine like terms: -7500 + 4900 = -2600 4900 + -140x + x2 = -2600 Factor a perfect square on the left side: (x + -70)(x + -70) = -2600 Can't calculate square root of the right side. The solution to this equation could not be determined.
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