t^2-14t+20=0

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Solution for t^2-14t+20=0 equation:


Simplifying
t2 + -14t + 20 = 0

Reorder the terms:
20 + -14t + t2 = 0

Solving
20 + -14t + t2 = 0

Solving for variable 't'.

Begin completing the square.

Move the constant term to the right:

Add '-20' to each side of the equation.
20 + -14t + -20 + t2 = 0 + -20

Reorder the terms:
20 + -20 + -14t + t2 = 0 + -20

Combine like terms: 20 + -20 = 0
0 + -14t + t2 = 0 + -20
-14t + t2 = 0 + -20

Combine like terms: 0 + -20 = -20
-14t + t2 = -20

The t term is -14t.  Take half its coefficient (-7).
Square it (49) and add it to both sides.

Add '49' to each side of the equation.
-14t + 49 + t2 = -20 + 49

Reorder the terms:
49 + -14t + t2 = -20 + 49

Combine like terms: -20 + 49 = 29
49 + -14t + t2 = 29

Factor a perfect square on the left side:
(t + -7)(t + -7) = 29

Calculate the square root of the right side: 5.385164807

Break this problem into two subproblems by setting 
(t + -7) equal to 5.385164807 and -5.385164807.

Subproblem 1

t + -7 = 5.385164807 Simplifying t + -7 = 5.385164807 Reorder the terms: -7 + t = 5.385164807 Solving -7 + t = 5.385164807 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + t = 5.385164807 + 7 Combine like terms: -7 + 7 = 0 0 + t = 5.385164807 + 7 t = 5.385164807 + 7 Combine like terms: 5.385164807 + 7 = 12.385164807 t = 12.385164807 Simplifying t = 12.385164807

Subproblem 2

t + -7 = -5.385164807 Simplifying t + -7 = -5.385164807 Reorder the terms: -7 + t = -5.385164807 Solving -7 + t = -5.385164807 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + t = -5.385164807 + 7 Combine like terms: -7 + 7 = 0 0 + t = -5.385164807 + 7 t = -5.385164807 + 7 Combine like terms: -5.385164807 + 7 = 1.614835193 t = 1.614835193 Simplifying t = 1.614835193

Solution

The solution to the problem is based on the solutions from the subproblems. t = {12.385164807, 1.614835193}

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