t^2-10t+6=-7

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Solution for t^2-10t+6=-7 equation:


Simplifying
t2 + -10t + 6 = -7

Reorder the terms:
6 + -10t + t2 = -7

Solving
6 + -10t + t2 = -7

Solving for variable 't'.

Reorder the terms:
6 + 7 + -10t + t2 = -7 + 7

Combine like terms: 6 + 7 = 13
13 + -10t + t2 = -7 + 7

Combine like terms: -7 + 7 = 0
13 + -10t + t2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-13' to each side of the equation.
13 + -10t + -13 + t2 = 0 + -13

Reorder the terms:
13 + -13 + -10t + t2 = 0 + -13

Combine like terms: 13 + -13 = 0
0 + -10t + t2 = 0 + -13
-10t + t2 = 0 + -13

Combine like terms: 0 + -13 = -13
-10t + t2 = -13

The t term is -10t.  Take half its coefficient (-5).
Square it (25) and add it to both sides.

Add '25' to each side of the equation.
-10t + 25 + t2 = -13 + 25

Reorder the terms:
25 + -10t + t2 = -13 + 25

Combine like terms: -13 + 25 = 12
25 + -10t + t2 = 12

Factor a perfect square on the left side:
(t + -5)(t + -5) = 12

Calculate the square root of the right side: 3.464101615

Break this problem into two subproblems by setting 
(t + -5) equal to 3.464101615 and -3.464101615.

Subproblem 1

t + -5 = 3.464101615 Simplifying t + -5 = 3.464101615 Reorder the terms: -5 + t = 3.464101615 Solving -5 + t = 3.464101615 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + t = 3.464101615 + 5 Combine like terms: -5 + 5 = 0 0 + t = 3.464101615 + 5 t = 3.464101615 + 5 Combine like terms: 3.464101615 + 5 = 8.464101615 t = 8.464101615 Simplifying t = 8.464101615

Subproblem 2

t + -5 = -3.464101615 Simplifying t + -5 = -3.464101615 Reorder the terms: -5 + t = -3.464101615 Solving -5 + t = -3.464101615 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + t = -3.464101615 + 5 Combine like terms: -5 + 5 = 0 0 + t = -3.464101615 + 5 t = -3.464101615 + 5 Combine like terms: -3.464101615 + 5 = 1.535898385 t = 1.535898385 Simplifying t = 1.535898385

Solution

The solution to the problem is based on the solutions from the subproblems. t = {8.464101615, 1.535898385}

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