j^2+14j-3=0

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Solution for j^2+14j-3=0 equation:


Simplifying
j2 + 14j + -3 = 0

Reorder the terms:
-3 + 14j + j2 = 0

Solving
-3 + 14j + j2 = 0

Solving for variable 'j'.

Begin completing the square.

Move the constant term to the right:

Add '3' to each side of the equation.
-3 + 14j + 3 + j2 = 0 + 3

Reorder the terms:
-3 + 3 + 14j + j2 = 0 + 3

Combine like terms: -3 + 3 = 0
0 + 14j + j2 = 0 + 3
14j + j2 = 0 + 3

Combine like terms: 0 + 3 = 3
14j + j2 = 3

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

Add '49' to each side of the equation.
14j + 49 + j2 = 3 + 49

Reorder the terms:
49 + 14j + j2 = 3 + 49

Combine like terms: 3 + 49 = 52
49 + 14j + j2 = 52

Factor a perfect square on the left side:
(j + 7)(j + 7) = 52

Calculate the square root of the right side: 7.211102551

Break this problem into two subproblems by setting 
(j + 7) equal to 7.211102551 and -7.211102551.

Subproblem 1

j + 7 = 7.211102551 Simplifying j + 7 = 7.211102551 Reorder the terms: 7 + j = 7.211102551 Solving 7 + j = 7.211102551 Solving for variable 'j'. Move all terms containing j to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + j = 7.211102551 + -7 Combine like terms: 7 + -7 = 0 0 + j = 7.211102551 + -7 j = 7.211102551 + -7 Combine like terms: 7.211102551 + -7 = 0.211102551 j = 0.211102551 Simplifying j = 0.211102551

Subproblem 2

j + 7 = -7.211102551 Simplifying j + 7 = -7.211102551 Reorder the terms: 7 + j = -7.211102551 Solving 7 + j = -7.211102551 Solving for variable 'j'. Move all terms containing j to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + j = -7.211102551 + -7 Combine like terms: 7 + -7 = 0 0 + j = -7.211102551 + -7 j = -7.211102551 + -7 Combine like terms: -7.211102551 + -7 = -14.211102551 j = -14.211102551 Simplifying j = -14.211102551

Solution

The solution to the problem is based on the solutions from the subproblems. j = {0.211102551, -14.211102551}

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