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Simplifying 64.8 + 18t + 4.9t2 = 0 Solving 64.8 + 18t + 4.9t2 = 0 Solving for variable 't'. Begin completing the square. Divide all terms by 4.9 the coefficient of the squared term: Divide each side by '4.9'. 13.2244898 + 3.673469388t + t2 = 0 Move the constant term to the right: Add '-13.2244898' to each side of the equation. 13.2244898 + 3.673469388t + -13.2244898 + t2 = 0 + -13.2244898 Reorder the terms: 13.2244898 + -13.2244898 + 3.673469388t + t2 = 0 + -13.2244898 Combine like terms: 13.2244898 + -13.2244898 = 0.0000000 0.0000000 + 3.673469388t + t2 = 0 + -13.2244898 3.673469388t + t2 = 0 + -13.2244898 Combine like terms: 0 + -13.2244898 = -13.2244898 3.673469388t + t2 = -13.2244898 The t term is 3.673469388t. Take half its coefficient (1.836734694). Square it (3.373594336) and add it to both sides. Add '3.373594336' to each side of the equation. 3.673469388t + 3.373594336 + t2 = -13.2244898 + 3.373594336 Reorder the terms: 3.373594336 + 3.673469388t + t2 = -13.2244898 + 3.373594336 Combine like terms: -13.2244898 + 3.373594336 = -9.850895464 3.373594336 + 3.673469388t + t2 = -9.850895464 Factor a perfect square on the left side: (t + 1.836734694)(t + 1.836734694) = -9.850895464 Can't calculate square root of the right side. The solution to this equation could not be determined.
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