y^2-26y+45=0

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Solution for y^2-26y+45=0 equation:


Simplifying
y2 + -26y + 45 = 0

Reorder the terms:
45 + -26y + y2 = 0

Solving
45 + -26y + y2 = 0

Solving for variable 'y'.

Begin completing the square.

Move the constant term to the right:

Add '-45' to each side of the equation.
45 + -26y + -45 + y2 = 0 + -45

Reorder the terms:
45 + -45 + -26y + y2 = 0 + -45

Combine like terms: 45 + -45 = 0
0 + -26y + y2 = 0 + -45
-26y + y2 = 0 + -45

Combine like terms: 0 + -45 = -45
-26y + y2 = -45

The y term is -26y.  Take half its coefficient (-13).
Square it (169) and add it to both sides.

Add '169' to each side of the equation.
-26y + 169 + y2 = -45 + 169

Reorder the terms:
169 + -26y + y2 = -45 + 169

Combine like terms: -45 + 169 = 124
169 + -26y + y2 = 124

Factor a perfect square on the left side:
(y + -13)(y + -13) = 124

Calculate the square root of the right side: 11.135528726

Break this problem into two subproblems by setting 
(y + -13) equal to 11.135528726 and -11.135528726.

Subproblem 1

y + -13 = 11.135528726 Simplifying y + -13 = 11.135528726 Reorder the terms: -13 + y = 11.135528726 Solving -13 + y = 11.135528726 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '13' to each side of the equation. -13 + 13 + y = 11.135528726 + 13 Combine like terms: -13 + 13 = 0 0 + y = 11.135528726 + 13 y = 11.135528726 + 13 Combine like terms: 11.135528726 + 13 = 24.135528726 y = 24.135528726 Simplifying y = 24.135528726

Subproblem 2

y + -13 = -11.135528726 Simplifying y + -13 = -11.135528726 Reorder the terms: -13 + y = -11.135528726 Solving -13 + y = -11.135528726 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '13' to each side of the equation. -13 + 13 + y = -11.135528726 + 13 Combine like terms: -13 + 13 = 0 0 + y = -11.135528726 + 13 y = -11.135528726 + 13 Combine like terms: -11.135528726 + 13 = 1.864471274 y = 1.864471274 Simplifying y = 1.864471274

Solution

The solution to the problem is based on the solutions from the subproblems. y = {24.135528726, 1.864471274}

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