(0.0895)*t^2-4.7*t+42=0

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Solution for (0.0895)*t^2-4.7*t+42=0 equation:


Simplifying
(0.0895) * t2 + -4.7t + 42 = 0

Reorder the terms:
42 + -4.7t + 0.0895t2 = 0

Solving
42 + -4.7t + 0.0895t2 = 0

Solving for variable 't'.

Begin completing the square.  Divide all terms by
0.0895 the coefficient of the squared term: 

Divide each side by '0.0895'.
469.273743 + -52.51396648t + t2 = 0

Move the constant term to the right:

Add '-469.273743' to each side of the equation.
469.273743 + -52.51396648t + -469.273743 + t2 = 0 + -469.273743

Reorder the terms:
469.273743 + -469.273743 + -52.51396648t + t2 = 0 + -469.273743

Combine like terms: 469.273743 + -469.273743 = 0.000000
0.000000 + -52.51396648t + t2 = 0 + -469.273743
-52.51396648t + t2 = 0 + -469.273743

Combine like terms: 0 + -469.273743 = -469.273743
-52.51396648t + t2 = -469.273743

The t term is -52.51396648t.  Take half its coefficient (-26.25698324).
Square it (689.4291689) and add it to both sides.

Add '689.4291689' to each side of the equation.
-52.51396648t + 689.4291689 + t2 = -469.273743 + 689.4291689

Reorder the terms:
689.4291689 + -52.51396648t + t2 = -469.273743 + 689.4291689

Combine like terms: -469.273743 + 689.4291689 = 220.1554259
689.4291689 + -52.51396648t + t2 = 220.1554259

Factor a perfect square on the left side:
(t + -26.25698324)(t + -26.25698324) = 220.1554259

Calculate the square root of the right side: 14.837635455

Break this problem into two subproblems by setting 
(t + -26.25698324) equal to 14.837635455 and -14.837635455.

Subproblem 1

t + -26.25698324 = 14.837635455 Simplifying t + -26.25698324 = 14.837635455 Reorder the terms: -26.25698324 + t = 14.837635455 Solving -26.25698324 + t = 14.837635455 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '26.25698324' to each side of the equation. -26.25698324 + 26.25698324 + t = 14.837635455 + 26.25698324 Combine like terms: -26.25698324 + 26.25698324 = 0.00000000 0.00000000 + t = 14.837635455 + 26.25698324 t = 14.837635455 + 26.25698324 Combine like terms: 14.837635455 + 26.25698324 = 41.094618695 t = 41.094618695 Simplifying t = 41.094618695

Subproblem 2

t + -26.25698324 = -14.837635455 Simplifying t + -26.25698324 = -14.837635455 Reorder the terms: -26.25698324 + t = -14.837635455 Solving -26.25698324 + t = -14.837635455 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '26.25698324' to each side of the equation. -26.25698324 + 26.25698324 + t = -14.837635455 + 26.25698324 Combine like terms: -26.25698324 + 26.25698324 = 0.00000000 0.00000000 + t = -14.837635455 + 26.25698324 t = -14.837635455 + 26.25698324 Combine like terms: -14.837635455 + 26.25698324 = 11.419347785 t = 11.419347785 Simplifying t = 11.419347785

Solution

The solution to the problem is based on the solutions from the subproblems. t = {41.094618695, 11.419347785}

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