(2t-3)2=2t^2+5t-26

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Solution for (2t-3)2=2t^2+5t-26 equation:


Simplifying
(2t + -3) * 2 = 2t2 + 5t + -26

Reorder the terms:
(-3 + 2t) * 2 = 2t2 + 5t + -26

Reorder the terms for easier multiplication:
2(-3 + 2t) = 2t2 + 5t + -26
(-3 * 2 + 2t * 2) = 2t2 + 5t + -26
(-6 + 4t) = 2t2 + 5t + -26

Reorder the terms:
-6 + 4t = -26 + 5t + 2t2

Solving
-6 + 4t = -26 + 5t + 2t2

Solving for variable 't'.

Reorder the terms:
-6 + 26 + 4t + -5t + -2t2 = -26 + 5t + 2t2 + 26 + -5t + -2t2

Combine like terms: -6 + 26 = 20
20 + 4t + -5t + -2t2 = -26 + 5t + 2t2 + 26 + -5t + -2t2

Combine like terms: 4t + -5t = -1t
20 + -1t + -2t2 = -26 + 5t + 2t2 + 26 + -5t + -2t2

Reorder the terms:
20 + -1t + -2t2 = -26 + 26 + 5t + -5t + 2t2 + -2t2

Combine like terms: -26 + 26 = 0
20 + -1t + -2t2 = 0 + 5t + -5t + 2t2 + -2t2
20 + -1t + -2t2 = 5t + -5t + 2t2 + -2t2

Combine like terms: 5t + -5t = 0
20 + -1t + -2t2 = 0 + 2t2 + -2t2
20 + -1t + -2t2 = 2t2 + -2t2

Combine like terms: 2t2 + -2t2 = 0
20 + -1t + -2t2 = 0

Begin completing the square.  Divide all terms by
-2 the coefficient of the squared term: 

Divide each side by '-2'.
-10 + 0.5t + t2 = 0

Move the constant term to the right:

Add '10' to each side of the equation.
-10 + 0.5t + 10 + t2 = 0 + 10

Reorder the terms:
-10 + 10 + 0.5t + t2 = 0 + 10

Combine like terms: -10 + 10 = 0
0 + 0.5t + t2 = 0 + 10
0.5t + t2 = 0 + 10

Combine like terms: 0 + 10 = 10
0.5t + t2 = 10

The t term is 0.5t.  Take half its coefficient (0.25).
Square it (0.0625) and add it to both sides.

Add '0.0625' to each side of the equation.
0.5t + 0.0625 + t2 = 10 + 0.0625

Reorder the terms:
0.0625 + 0.5t + t2 = 10 + 0.0625

Combine like terms: 10 + 0.0625 = 10.0625
0.0625 + 0.5t + t2 = 10.0625

Factor a perfect square on the left side:
(t + 0.25)(t + 0.25) = 10.0625

Calculate the square root of the right side: 3.172144385

Break this problem into two subproblems by setting 
(t + 0.25) equal to 3.172144385 and -3.172144385.

Subproblem 1

t + 0.25 = 3.172144385 Simplifying t + 0.25 = 3.172144385 Reorder the terms: 0.25 + t = 3.172144385 Solving 0.25 + t = 3.172144385 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-0.25' to each side of the equation. 0.25 + -0.25 + t = 3.172144385 + -0.25 Combine like terms: 0.25 + -0.25 = 0.00 0.00 + t = 3.172144385 + -0.25 t = 3.172144385 + -0.25 Combine like terms: 3.172144385 + -0.25 = 2.922144385 t = 2.922144385 Simplifying t = 2.922144385

Subproblem 2

t + 0.25 = -3.172144385 Simplifying t + 0.25 = -3.172144385 Reorder the terms: 0.25 + t = -3.172144385 Solving 0.25 + t = -3.172144385 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-0.25' to each side of the equation. 0.25 + -0.25 + t = -3.172144385 + -0.25 Combine like terms: 0.25 + -0.25 = 0.00 0.00 + t = -3.172144385 + -0.25 t = -3.172144385 + -0.25 Combine like terms: -3.172144385 + -0.25 = -3.422144385 t = -3.422144385 Simplifying t = -3.422144385

Solution

The solution to the problem is based on the solutions from the subproblems. t = {2.922144385, -3.422144385}

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