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Simplifying 21m2 + -41m + 21 = 0 Reorder the terms: 21 + -41m + 21m2 = 0 Solving 21 + -41m + 21m2 = 0 Solving for variable 'm'. Begin completing the square. Divide all terms by 21 the coefficient of the squared term: Divide each side by '21'. 1 + -1.952380952m + m2 = 0 Move the constant term to the right: Add '-1' to each side of the equation. 1 + -1.952380952m + -1 + m2 = 0 + -1 Reorder the terms: 1 + -1 + -1.952380952m + m2 = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -1.952380952m + m2 = 0 + -1 -1.952380952m + m2 = 0 + -1 Combine like terms: 0 + -1 = -1 -1.952380952m + m2 = -1 The m term is -1.952380952m. Take half its coefficient (-0.976190476). Square it (0.9529478454) and add it to both sides. Add '0.9529478454' to each side of the equation. -1.952380952m + 0.9529478454 + m2 = -1 + 0.9529478454 Reorder the terms: 0.9529478454 + -1.952380952m + m2 = -1 + 0.9529478454 Combine like terms: -1 + 0.9529478454 = -0.0470521546 0.9529478454 + -1.952380952m + m2 = -0.0470521546 Factor a perfect square on the left side: (m + -0.976190476)(m + -0.976190476) = -0.0470521546 Can't calculate square root of the right side. The solution to this equation could not be determined.
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