3t^2+8t+5=2t^2

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Solution for 3t^2+8t+5=2t^2 equation:


Simplifying
3t2 + 8t + 5 = 2t2

Reorder the terms:
5 + 8t + 3t2 = 2t2

Solving
5 + 8t + 3t2 = 2t2

Solving for variable 't'.

Combine like terms: 3t2 + -2t2 = 1t2
5 + 8t + 1t2 = 2t2 + -2t2

Combine like terms: 2t2 + -2t2 = 0
5 + 8t + 1t2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-5' to each side of the equation.
5 + 8t + -5 + t2 = 0 + -5

Reorder the terms:
5 + -5 + 8t + t2 = 0 + -5

Combine like terms: 5 + -5 = 0
0 + 8t + t2 = 0 + -5
8t + t2 = 0 + -5

Combine like terms: 0 + -5 = -5
8t + t2 = -5

The t term is 8t.  Take half its coefficient (4).
Square it (16) and add it to both sides.

Add '16' to each side of the equation.
8t + 16 + t2 = -5 + 16

Reorder the terms:
16 + 8t + t2 = -5 + 16

Combine like terms: -5 + 16 = 11
16 + 8t + t2 = 11

Factor a perfect square on the left side:
(t + 4)(t + 4) = 11

Calculate the square root of the right side: 3.31662479

Break this problem into two subproblems by setting 
(t + 4) equal to 3.31662479 and -3.31662479.

Subproblem 1

t + 4 = 3.31662479 Simplifying t + 4 = 3.31662479 Reorder the terms: 4 + t = 3.31662479 Solving 4 + t = 3.31662479 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + t = 3.31662479 + -4 Combine like terms: 4 + -4 = 0 0 + t = 3.31662479 + -4 t = 3.31662479 + -4 Combine like terms: 3.31662479 + -4 = -0.68337521 t = -0.68337521 Simplifying t = -0.68337521

Subproblem 2

t + 4 = -3.31662479 Simplifying t + 4 = -3.31662479 Reorder the terms: 4 + t = -3.31662479 Solving 4 + t = -3.31662479 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + t = -3.31662479 + -4 Combine like terms: 4 + -4 = 0 0 + t = -3.31662479 + -4 t = -3.31662479 + -4 Combine like terms: -3.31662479 + -4 = -7.31662479 t = -7.31662479 Simplifying t = -7.31662479

Solution

The solution to the problem is based on the solutions from the subproblems. t = {-0.68337521, -7.31662479}

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