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Simplifying x2 + -70x + 20100 = 0 Reorder the terms: 20100 + -70x + x2 = 0 Solving 20100 + -70x + x2 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '-20100' to each side of the equation. 20100 + -70x + -20100 + x2 = 0 + -20100 Reorder the terms: 20100 + -20100 + -70x + x2 = 0 + -20100 Combine like terms: 20100 + -20100 = 0 0 + -70x + x2 = 0 + -20100 -70x + x2 = 0 + -20100 Combine like terms: 0 + -20100 = -20100 -70x + x2 = -20100 The x term is -70x. Take half its coefficient (-35). Square it (1225) and add it to both sides. Add '1225' to each side of the equation. -70x + 1225 + x2 = -20100 + 1225 Reorder the terms: 1225 + -70x + x2 = -20100 + 1225 Combine like terms: -20100 + 1225 = -18875 1225 + -70x + x2 = -18875 Factor a perfect square on the left side: (x + -35)(x + -35) = -18875 Can't calculate square root of the right side. The solution to this equation could not be determined.
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