j^2-26j+45=0

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


Simplifying
j2 + -26j + 45 = 0

Reorder the terms:
45 + -26j + j2 = 0

Solving
45 + -26j + j2 = 0

Solving for variable 'j'.

Begin completing the square.

Move the constant term to the right:

Add '-45' to each side of the equation.
45 + -26j + -45 + j2 = 0 + -45

Reorder the terms:
45 + -45 + -26j + j2 = 0 + -45

Combine like terms: 45 + -45 = 0
0 + -26j + j2 = 0 + -45
-26j + j2 = 0 + -45

Combine like terms: 0 + -45 = -45
-26j + j2 = -45

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

Add '169' to each side of the equation.
-26j + 169 + j2 = -45 + 169

Reorder the terms:
169 + -26j + j2 = -45 + 169

Combine like terms: -45 + 169 = 124
169 + -26j + j2 = 124

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

Calculate the square root of the right side: 11.135528726

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

Subproblem 1

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

Subproblem 2

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

Solution

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

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