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Simplifying t2 + -18t + 729 = 0 Reorder the terms: 729 + -18t + t2 = 0 Solving 729 + -18t + t2 = 0 Solving for variable 't'. Begin completing the square. Move the constant term to the right: Add '-729' to each side of the equation. 729 + -18t + -729 + t2 = 0 + -729 Reorder the terms: 729 + -729 + -18t + t2 = 0 + -729 Combine like terms: 729 + -729 = 0 0 + -18t + t2 = 0 + -729 -18t + t2 = 0 + -729 Combine like terms: 0 + -729 = -729 -18t + t2 = -729 The t term is -18t. Take half its coefficient (-9). Square it (81) and add it to both sides. Add '81' to each side of the equation. -18t + 81 + t2 = -729 + 81 Reorder the terms: 81 + -18t + t2 = -729 + 81 Combine like terms: -729 + 81 = -648 81 + -18t + t2 = -648 Factor a perfect square on the left side: (t + -9)(t + -9) = -648 Can't calculate square root of the right side. The solution to this equation could not be determined.
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