4.9t^2-18t-32=0

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Solution for 4.9t^2-18t-32=0 equation:


Simplifying
4.9t2 + -18t + -32 = 0

Reorder the terms:
-32 + -18t + 4.9t2 = 0

Solving
-32 + -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'.
-6.530612245 + -3.673469388t + t2 = 0

Move the constant term to the right:

Add '6.530612245' to each side of the equation.
-6.530612245 + -3.673469388t + 6.530612245 + t2 = 0 + 6.530612245

Reorder the terms:
-6.530612245 + 6.530612245 + -3.673469388t + t2 = 0 + 6.530612245

Combine like terms: -6.530612245 + 6.530612245 = 0.000000000
0.000000000 + -3.673469388t + t2 = 0 + 6.530612245
-3.673469388t + t2 = 0 + 6.530612245

Combine like terms: 0 + 6.530612245 = 6.530612245
-3.673469388t + t2 = 6.530612245

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 = 6.530612245 + 3.373594336

Reorder the terms:
3.373594336 + -3.673469388t + t2 = 6.530612245 + 3.373594336

Combine like terms: 6.530612245 + 3.373594336 = 9.904206581
3.373594336 + -3.673469388t + t2 = 9.904206581

Factor a perfect square on the left side:
(t + -1.836734694)(t + -1.836734694) = 9.904206581

Calculate the square root of the right side: 3.147094943

Break this problem into two subproblems by setting 
(t + -1.836734694) equal to 3.147094943 and -3.147094943.

Subproblem 1

t + -1.836734694 = 3.147094943 Simplifying t + -1.836734694 = 3.147094943 Reorder the terms: -1.836734694 + t = 3.147094943 Solving -1.836734694 + t = 3.147094943 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '1.836734694' to each side of the equation. -1.836734694 + 1.836734694 + t = 3.147094943 + 1.836734694 Combine like terms: -1.836734694 + 1.836734694 = 0.000000000 0.000000000 + t = 3.147094943 + 1.836734694 t = 3.147094943 + 1.836734694 Combine like terms: 3.147094943 + 1.836734694 = 4.983829637 t = 4.983829637 Simplifying t = 4.983829637

Subproblem 2

t + -1.836734694 = -3.147094943 Simplifying t + -1.836734694 = -3.147094943 Reorder the terms: -1.836734694 + t = -3.147094943 Solving -1.836734694 + t = -3.147094943 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '1.836734694' to each side of the equation. -1.836734694 + 1.836734694 + t = -3.147094943 + 1.836734694 Combine like terms: -1.836734694 + 1.836734694 = 0.000000000 0.000000000 + t = -3.147094943 + 1.836734694 t = -3.147094943 + 1.836734694 Combine like terms: -3.147094943 + 1.836734694 = -1.310360249 t = -1.310360249 Simplifying t = -1.310360249

Solution

The solution to the problem is based on the solutions from the subproblems. t = {4.983829637, -1.310360249}

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