5t^2+3t=64

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Solution for 5t^2+3t=64 equation:


Simplifying
5t2 + 3t = 64

Reorder the terms:
3t + 5t2 = 64

Solving
3t + 5t2 = 64

Solving for variable 't'.

Reorder the terms:
-64 + 3t + 5t2 = 64 + -64

Combine like terms: 64 + -64 = 0
-64 + 3t + 5t2 = 0

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

Divide each side by '5'.
-12.8 + 0.6t + t2 = 0

Move the constant term to the right:

Add '12.8' to each side of the equation.
-12.8 + 0.6t + 12.8 + t2 = 0 + 12.8

Reorder the terms:
-12.8 + 12.8 + 0.6t + t2 = 0 + 12.8

Combine like terms: -12.8 + 12.8 = 0.0
0.0 + 0.6t + t2 = 0 + 12.8
0.6t + t2 = 0 + 12.8

Combine like terms: 0 + 12.8 = 12.8
0.6t + t2 = 12.8

The t term is 0.6t.  Take half its coefficient (0.3).
Square it (0.09) and add it to both sides.

Add '0.09' to each side of the equation.
0.6t + 0.09 + t2 = 12.8 + 0.09

Reorder the terms:
0.09 + 0.6t + t2 = 12.8 + 0.09

Combine like terms: 12.8 + 0.09 = 12.89
0.09 + 0.6t + t2 = 12.89

Factor a perfect square on the left side:
(t + 0.3)(t + 0.3) = 12.89

Calculate the square root of the right side: 3.590264614

Break this problem into two subproblems by setting 
(t + 0.3) equal to 3.590264614 and -3.590264614.

Subproblem 1

t + 0.3 = 3.590264614 Simplifying t + 0.3 = 3.590264614 Reorder the terms: 0.3 + t = 3.590264614 Solving 0.3 + t = 3.590264614 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-0.3' to each side of the equation. 0.3 + -0.3 + t = 3.590264614 + -0.3 Combine like terms: 0.3 + -0.3 = 0.0 0.0 + t = 3.590264614 + -0.3 t = 3.590264614 + -0.3 Combine like terms: 3.590264614 + -0.3 = 3.290264614 t = 3.290264614 Simplifying t = 3.290264614

Subproblem 2

t + 0.3 = -3.590264614 Simplifying t + 0.3 = -3.590264614 Reorder the terms: 0.3 + t = -3.590264614 Solving 0.3 + t = -3.590264614 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-0.3' to each side of the equation. 0.3 + -0.3 + t = -3.590264614 + -0.3 Combine like terms: 0.3 + -0.3 = 0.0 0.0 + t = -3.590264614 + -0.3 t = -3.590264614 + -0.3 Combine like terms: -3.590264614 + -0.3 = -3.890264614 t = -3.890264614 Simplifying t = -3.890264614

Solution

The solution to the problem is based on the solutions from the subproblems. t = {3.290264614, -3.890264614}

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