-0.25=2.37t-4.90t^2

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Solution for -0.25=2.37t-4.90t^2 equation:


Simplifying
-0.25 = 2.37t + -4.90t2

Solving
-0.25 = 2.37t + -4.90t2

Solving for variable 't'.

Reorder the terms:
-0.25 + -2.37t + 4.90t2 = 2.37t + -2.37t + -4.90t2 + 4.90t2

Combine like terms: 2.37t + -2.37t = 0.00
-0.25 + -2.37t + 4.90t2 = 0.00 + -4.90t2 + 4.90t2
-0.25 + -2.37t + 4.90t2 = -4.90t2 + 4.90t2

Combine like terms: -4.90t2 + 4.90t2 = 0.00
-0.25 + -2.37t + 4.90t2 = 0.00

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

Divide each side by '4.90'.
-0.05102040816 + -0.4836734694t + t2 = 0

Move the constant term to the right:

Add '0.05102040816' to each side of the equation.
-0.05102040816 + -0.4836734694t + 0.05102040816 + t2 = 0 + 0.05102040816

Reorder the terms:
-0.05102040816 + 0.05102040816 + -0.4836734694t + t2 = 0 + 0.05102040816

Combine like terms: -0.05102040816 + 0.05102040816 = 0.00000000000
0.00000000000 + -0.4836734694t + t2 = 0 + 0.05102040816
-0.4836734694t + t2 = 0 + 0.05102040816

Combine like terms: 0 + 0.05102040816 = 0.05102040816
-0.4836734694t + t2 = 0.05102040816

The t term is -0.4836734694t.  Take half its coefficient (-0.2418367347).
Square it (0.05848500625) and add it to both sides.

Add '0.05848500625' to each side of the equation.
-0.4836734694t + 0.05848500625 + t2 = 0.05102040816 + 0.05848500625

Reorder the terms:
0.05848500625 + -0.4836734694t + t2 = 0.05102040816 + 0.05848500625

Combine like terms: 0.05102040816 + 0.05848500625 = 0.10950541441
0.05848500625 + -0.4836734694t + t2 = 0.10950541441

Factor a perfect square on the left side:
(t + -0.2418367347)(t + -0.2418367347) = 0.10950541441

Calculate the square root of the right side: 0.330916023

Break this problem into two subproblems by setting 
(t + -0.2418367347) equal to 0.330916023 and -0.330916023.

Subproblem 1

t + -0.2418367347 = 0.330916023 Simplifying t + -0.2418367347 = 0.330916023 Reorder the terms: -0.2418367347 + t = 0.330916023 Solving -0.2418367347 + t = 0.330916023 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '0.2418367347' to each side of the equation. -0.2418367347 + 0.2418367347 + t = 0.330916023 + 0.2418367347 Combine like terms: -0.2418367347 + 0.2418367347 = 0.0000000000 0.0000000000 + t = 0.330916023 + 0.2418367347 t = 0.330916023 + 0.2418367347 Combine like terms: 0.330916023 + 0.2418367347 = 0.5727527577 t = 0.5727527577 Simplifying t = 0.5727527577

Subproblem 2

t + -0.2418367347 = -0.330916023 Simplifying t + -0.2418367347 = -0.330916023 Reorder the terms: -0.2418367347 + t = -0.330916023 Solving -0.2418367347 + t = -0.330916023 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '0.2418367347' to each side of the equation. -0.2418367347 + 0.2418367347 + t = -0.330916023 + 0.2418367347 Combine like terms: -0.2418367347 + 0.2418367347 = 0.0000000000 0.0000000000 + t = -0.330916023 + 0.2418367347 t = -0.330916023 + 0.2418367347 Combine like terms: -0.330916023 + 0.2418367347 = -0.0890792883 t = -0.0890792883 Simplifying t = -0.0890792883

Solution

The solution to the problem is based on the solutions from the subproblems. t = {0.5727527577, -0.0890792883}

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