-t^2+6t=4

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Solution for -t^2+6t=4 equation:


Simplifying
-1t2 + 6t = 4

Reorder the terms:
6t + -1t2 = 4

Solving
6t + -1t2 = 4

Solving for variable 't'.

Reorder the terms:
-4 + 6t + -1t2 = 4 + -4

Combine like terms: 4 + -4 = 0
-4 + 6t + -1t2 = 0

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
4 + -6t + t2 = 0

Move the constant term to the right:

Add '-4' to each side of the equation.
4 + -6t + -4 + t2 = 0 + -4

Reorder the terms:
4 + -4 + -6t + t2 = 0 + -4

Combine like terms: 4 + -4 = 0
0 + -6t + t2 = 0 + -4
-6t + t2 = 0 + -4

Combine like terms: 0 + -4 = -4
-6t + t2 = -4

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 = -4 + 9

Reorder the terms:
9 + -6t + t2 = -4 + 9

Combine like terms: -4 + 9 = 5
9 + -6t + t2 = 5

Factor a perfect square on the left side:
(t + -3)(t + -3) = 5

Calculate the square root of the right side: 2.236067978

Break this problem into two subproblems by setting 
(t + -3) equal to 2.236067978 and -2.236067978.

Subproblem 1

t + -3 = 2.236067978 Simplifying t + -3 = 2.236067978 Reorder the terms: -3 + t = 2.236067978 Solving -3 + t = 2.236067978 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 = 2.236067978 + 3 Combine like terms: -3 + 3 = 0 0 + t = 2.236067978 + 3 t = 2.236067978 + 3 Combine like terms: 2.236067978 + 3 = 5.236067978 t = 5.236067978 Simplifying t = 5.236067978

Subproblem 2

t + -3 = -2.236067978 Simplifying t + -3 = -2.236067978 Reorder the terms: -3 + t = -2.236067978 Solving -3 + t = -2.236067978 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 = -2.236067978 + 3 Combine like terms: -3 + 3 = 0 0 + t = -2.236067978 + 3 t = -2.236067978 + 3 Combine like terms: -2.236067978 + 3 = 0.763932022 t = 0.763932022 Simplifying t = 0.763932022

Solution

The solution to the problem is based on the solutions from the subproblems. t = {5.236067978, 0.763932022}

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