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Simplifying 7t + -0.83t2 + -25 = 0 Reorder the terms: -25 + 7t + -0.83t2 = 0 Solving -25 + 7t + -0.83t2 = 0 Solving for variable 't'. Begin completing the square. Divide all terms by -0.83 the coefficient of the squared term: Divide each side by '-0.83'. 30.12048193 + -8.43373494t + t2 = 0 Move the constant term to the right: Add '-30.12048193' to each side of the equation. 30.12048193 + -8.43373494t + -30.12048193 + t2 = 0 + -30.12048193 Reorder the terms: 30.12048193 + -30.12048193 + -8.43373494t + t2 = 0 + -30.12048193 Combine like terms: 30.12048193 + -30.12048193 = 0.00000000 0.00000000 + -8.43373494t + t2 = 0 + -30.12048193 -8.43373494t + t2 = 0 + -30.12048193 Combine like terms: 0 + -30.12048193 = -30.12048193 -8.43373494t + t2 = -30.12048193 The t term is -8.43373494t. Take half its coefficient (-4.21686747). Square it (17.78197126) and add it to both sides. Add '17.78197126' to each side of the equation. -8.43373494t + 17.78197126 + t2 = -30.12048193 + 17.78197126 Reorder the terms: 17.78197126 + -8.43373494t + t2 = -30.12048193 + 17.78197126 Combine like terms: -30.12048193 + 17.78197126 = -12.33851067 17.78197126 + -8.43373494t + t2 = -12.33851067 Factor a perfect square on the left side: (t + -4.21686747)(t + -4.21686747) = -12.33851067 Can't calculate square root of the right side. The solution to this equation could not be determined.
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