t^2+3t+3=5

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


Simplifying
t2 + 3t + 3 = 5

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

Solving
3 + 3t + t2 = 5

Solving for variable 't'.

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

Combine like terms: 3 + -5 = -2
-2 + 3t + t2 = 5 + -5

Combine like terms: 5 + -5 = 0
-2 + 3t + t2 = 0

Begin completing the square.

Move the constant term to the right:

Add '2' to each side of the equation.
-2 + 3t + 2 + t2 = 0 + 2

Reorder the terms:
-2 + 2 + 3t + t2 = 0 + 2

Combine like terms: -2 + 2 = 0
0 + 3t + t2 = 0 + 2
3t + t2 = 0 + 2

Combine like terms: 0 + 2 = 2
3t + t2 = 2

The t term is 3t.  Take half its coefficient (1.5).
Square it (2.25) and add it to both sides.

Add '2.25' to each side of the equation.
3t + 2.25 + t2 = 2 + 2.25

Reorder the terms:
2.25 + 3t + t2 = 2 + 2.25

Combine like terms: 2 + 2.25 = 4.25
2.25 + 3t + t2 = 4.25

Factor a perfect square on the left side:
(t + 1.5)(t + 1.5) = 4.25

Calculate the square root of the right side: 2.061552813

Break this problem into two subproblems by setting 
(t + 1.5) equal to 2.061552813 and -2.061552813.

Subproblem 1

t + 1.5 = 2.061552813 Simplifying t + 1.5 = 2.061552813 Reorder the terms: 1.5 + t = 2.061552813 Solving 1.5 + t = 2.061552813 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-1.5' to each side of the equation. 1.5 + -1.5 + t = 2.061552813 + -1.5 Combine like terms: 1.5 + -1.5 = 0.0 0.0 + t = 2.061552813 + -1.5 t = 2.061552813 + -1.5 Combine like terms: 2.061552813 + -1.5 = 0.561552813 t = 0.561552813 Simplifying t = 0.561552813

Subproblem 2

t + 1.5 = -2.061552813 Simplifying t + 1.5 = -2.061552813 Reorder the terms: 1.5 + t = -2.061552813 Solving 1.5 + t = -2.061552813 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-1.5' to each side of the equation. 1.5 + -1.5 + t = -2.061552813 + -1.5 Combine like terms: 1.5 + -1.5 = 0.0 0.0 + t = -2.061552813 + -1.5 t = -2.061552813 + -1.5 Combine like terms: -2.061552813 + -1.5 = -3.561552813 t = -3.561552813 Simplifying t = -3.561552813

Solution

The solution to the problem is based on the solutions from the subproblems. t = {0.561552813, -3.561552813}

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