t^2+16=18t

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Solution for t^2+16=18t equation:


Simplifying
t2 + 16 = 18t

Reorder the terms:
16 + t2 = 18t

Solving
16 + t2 = 18t

Solving for variable 't'.

Reorder the terms:
16 + -18t + t2 = 18t + -18t

Combine like terms: 18t + -18t = 0
16 + -18t + t2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-16' to each side of the equation.
16 + -18t + -16 + t2 = 0 + -16

Reorder the terms:
16 + -16 + -18t + t2 = 0 + -16

Combine like terms: 16 + -16 = 0
0 + -18t + t2 = 0 + -16
-18t + t2 = 0 + -16

Combine like terms: 0 + -16 = -16
-18t + t2 = -16

The t term is -18t.  Take half its coefficient (-9).
Square it (81) and add it to both sides.

Add '81' to each side of the equation.
-18t + 81 + t2 = -16 + 81

Reorder the terms:
81 + -18t + t2 = -16 + 81

Combine like terms: -16 + 81 = 65
81 + -18t + t2 = 65

Factor a perfect square on the left side:
(t + -9)(t + -9) = 65

Calculate the square root of the right side: 8.062257748

Break this problem into two subproblems by setting 
(t + -9) equal to 8.062257748 and -8.062257748.

Subproblem 1

t + -9 = 8.062257748 Simplifying t + -9 = 8.062257748 Reorder the terms: -9 + t = 8.062257748 Solving -9 + t = 8.062257748 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '9' to each side of the equation. -9 + 9 + t = 8.062257748 + 9 Combine like terms: -9 + 9 = 0 0 + t = 8.062257748 + 9 t = 8.062257748 + 9 Combine like terms: 8.062257748 + 9 = 17.062257748 t = 17.062257748 Simplifying t = 17.062257748

Subproblem 2

t + -9 = -8.062257748 Simplifying t + -9 = -8.062257748 Reorder the terms: -9 + t = -8.062257748 Solving -9 + t = -8.062257748 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '9' to each side of the equation. -9 + 9 + t = -8.062257748 + 9 Combine like terms: -9 + 9 = 0 0 + t = -8.062257748 + 9 t = -8.062257748 + 9 Combine like terms: -8.062257748 + 9 = 0.937742252 t = 0.937742252 Simplifying t = 0.937742252

Solution

The solution to the problem is based on the solutions from the subproblems. t = {17.062257748, 0.937742252}

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