(-4.9t^2)+25t+2=0

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Solution for (-4.9t^2)+25t+2=0 equation:


Simplifying
(-4.9t2) + 25t + 2 = 0

Reorder the terms:
2 + 25t + (-4.9t2) = 0

Solving
2 + 25t + (-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'.
-0.4081632653 + -5.102040816t + t2 = 0

Move the constant term to the right:

Add '0.4081632653' to each side of the equation.
-0.4081632653 + -5.102040816t + 0.4081632653 + t2 = 0 + 0.4081632653

Reorder the terms:
-0.4081632653 + 0.4081632653 + -5.102040816t + t2 = 0 + 0.4081632653

Combine like terms: -0.4081632653 + 0.4081632653 = 0.0000000000
0.0000000000 + -5.102040816t + t2 = 0 + 0.4081632653
-5.102040816t + t2 = 0 + 0.4081632653

Combine like terms: 0 + 0.4081632653 = 0.4081632653
-5.102040816t + t2 = 0.4081632653

The t term is -5.102040816t.  Take half its coefficient (-2.551020408).
Square it (6.507705122) and add it to both sides.

Add '6.507705122' to each side of the equation.
-5.102040816t + 6.507705122 + t2 = 0.4081632653 + 6.507705122

Reorder the terms:
6.507705122 + -5.102040816t + t2 = 0.4081632653 + 6.507705122

Combine like terms: 0.4081632653 + 6.507705122 = 6.9158683873
6.507705122 + -5.102040816t + t2 = 6.9158683873

Factor a perfect square on the left side:
((t) + -2.551020408)((t) + -2.551020408) = 6.9158683873

Calculate the square root of the right side: 2.629803869

Break this problem into two subproblems by setting 
((t) + -2.551020408) equal to 2.629803869 and -2.629803869.

Subproblem 1

(t) + -2.551020408 = 2.629803869 Simplifying (t) + -2.551020408 = 2.629803869 t + -2.551020408 = 2.629803869 Reorder the terms: -2.551020408 + t = 2.629803869 Solving -2.551020408 + t = 2.629803869 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '2.551020408' to each side of the equation. -2.551020408 + 2.551020408 + t = 2.629803869 + 2.551020408 Combine like terms: -2.551020408 + 2.551020408 = 0.000000000 0.000000000 + t = 2.629803869 + 2.551020408 t = 2.629803869 + 2.551020408 Combine like terms: 2.629803869 + 2.551020408 = 5.180824277 t = 5.180824277 Simplifying t = 5.180824277

Subproblem 2

(t) + -2.551020408 = -2.629803869 Simplifying (t) + -2.551020408 = -2.629803869 t + -2.551020408 = -2.629803869 Reorder the terms: -2.551020408 + t = -2.629803869 Solving -2.551020408 + t = -2.629803869 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '2.551020408' to each side of the equation. -2.551020408 + 2.551020408 + t = -2.629803869 + 2.551020408 Combine like terms: -2.551020408 + 2.551020408 = 0.000000000 0.000000000 + t = -2.629803869 + 2.551020408 t = -2.629803869 + 2.551020408 Combine like terms: -2.629803869 + 2.551020408 = -0.078783461 t = -0.078783461 Simplifying t = -0.078783461

Solution

The solution to the problem is based on the solutions from the subproblems. t = {5.180824277, -0.078783461}

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