0=4t^2-24t-25

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Solution for 0=4t^2-24t-25 equation:


Simplifying
0 = 4t2 + -24t + -25

Reorder the terms:
0 = -25 + -24t + 4t2

Solving
0 = -25 + -24t + 4t2

Solving for variable 't'.

Combine like terms: 0 + 25 = 25
25 + 24t + -4t2 = -25 + -24t + 4t2 + 25 + 24t + -4t2

Reorder the terms:
25 + 24t + -4t2 = -25 + 25 + -24t + 24t + 4t2 + -4t2

Combine like terms: -25 + 25 = 0
25 + 24t + -4t2 = 0 + -24t + 24t + 4t2 + -4t2
25 + 24t + -4t2 = -24t + 24t + 4t2 + -4t2

Combine like terms: -24t + 24t = 0
25 + 24t + -4t2 = 0 + 4t2 + -4t2
25 + 24t + -4t2 = 4t2 + -4t2

Combine like terms: 4t2 + -4t2 = 0
25 + 24t + -4t2 = 0

Begin completing the square.  Divide all terms by
-4 the coefficient of the squared term: 

Divide each side by '-4'.
-6.25 + -6t + t2 = 0

Move the constant term to the right:

Add '6.25' to each side of the equation.
-6.25 + -6t + 6.25 + t2 = 0 + 6.25

Reorder the terms:
-6.25 + 6.25 + -6t + t2 = 0 + 6.25

Combine like terms: -6.25 + 6.25 = 0.00
0.00 + -6t + t2 = 0 + 6.25
-6t + t2 = 0 + 6.25

Combine like terms: 0 + 6.25 = 6.25
-6t + t2 = 6.25

The t term is -6t.  Take half its coefficient (-3).
Square it (9) and add it to both sides.

Add '9' to each side of the equation.
-6t + 9 + t2 = 6.25 + 9

Reorder the terms:
9 + -6t + t2 = 6.25 + 9

Combine like terms: 6.25 + 9 = 15.25
9 + -6t + t2 = 15.25

Factor a perfect square on the left side:
(t + -3)(t + -3) = 15.25

Calculate the square root of the right side: 3.905124838

Break this problem into two subproblems by setting 
(t + -3) equal to 3.905124838 and -3.905124838.

Subproblem 1

t + -3 = 3.905124838 Simplifying t + -3 = 3.905124838 Reorder the terms: -3 + t = 3.905124838 Solving -3 + t = 3.905124838 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + t = 3.905124838 + 3 Combine like terms: -3 + 3 = 0 0 + t = 3.905124838 + 3 t = 3.905124838 + 3 Combine like terms: 3.905124838 + 3 = 6.905124838 t = 6.905124838 Simplifying t = 6.905124838

Subproblem 2

t + -3 = -3.905124838 Simplifying t + -3 = -3.905124838 Reorder the terms: -3 + t = -3.905124838 Solving -3 + t = -3.905124838 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + t = -3.905124838 + 3 Combine like terms: -3 + 3 = 0 0 + t = -3.905124838 + 3 t = -3.905124838 + 3 Combine like terms: -3.905124838 + 3 = -0.905124838 t = -0.905124838 Simplifying t = -0.905124838

Solution

The solution to the problem is based on the solutions from the subproblems. t = {6.905124838, -0.905124838}

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