X*X=12X+17

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Solution for X*X=12X+17 equation:


Simplifying
X * X = 12X + 17

Multiply X * X
X2 = 12X + 17

Reorder the terms:
X2 = 17 + 12X

Solving
X2 = 17 + 12X

Solving for variable 'X'.

Reorder the terms:
-17 + -12X + X2 = 17 + 12X + -17 + -12X

Reorder the terms:
-17 + -12X + X2 = 17 + -17 + 12X + -12X

Combine like terms: 17 + -17 = 0
-17 + -12X + X2 = 0 + 12X + -12X
-17 + -12X + X2 = 12X + -12X

Combine like terms: 12X + -12X = 0
-17 + -12X + X2 = 0

Begin completing the square.

Move the constant term to the right:

Add '17' to each side of the equation.
-17 + -12X + 17 + X2 = 0 + 17

Reorder the terms:
-17 + 17 + -12X + X2 = 0 + 17

Combine like terms: -17 + 17 = 0
0 + -12X + X2 = 0 + 17
-12X + X2 = 0 + 17

Combine like terms: 0 + 17 = 17
-12X + X2 = 17

The X term is -12X.  Take half its coefficient (-6).
Square it (36) and add it to both sides.

Add '36' to each side of the equation.
-12X + 36 + X2 = 17 + 36

Reorder the terms:
36 + -12X + X2 = 17 + 36

Combine like terms: 17 + 36 = 53
36 + -12X + X2 = 53

Factor a perfect square on the left side:
(X + -6)(X + -6) = 53

Calculate the square root of the right side: 7.280109889

Break this problem into two subproblems by setting 
(X + -6) equal to 7.280109889 and -7.280109889.

Subproblem 1

X + -6 = 7.280109889 Simplifying X + -6 = 7.280109889 Reorder the terms: -6 + X = 7.280109889 Solving -6 + X = 7.280109889 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + X = 7.280109889 + 6 Combine like terms: -6 + 6 = 0 0 + X = 7.280109889 + 6 X = 7.280109889 + 6 Combine like terms: 7.280109889 + 6 = 13.280109889 X = 13.280109889 Simplifying X = 13.280109889

Subproblem 2

X + -6 = -7.280109889 Simplifying X + -6 = -7.280109889 Reorder the terms: -6 + X = -7.280109889 Solving -6 + X = -7.280109889 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + X = -7.280109889 + 6 Combine like terms: -6 + 6 = 0 0 + X = -7.280109889 + 6 X = -7.280109889 + 6 Combine like terms: -7.280109889 + 6 = -1.280109889 X = -1.280109889 Simplifying X = -1.280109889

Solution

The solution to the problem is based on the solutions from the subproblems. X = {13.280109889, -1.280109889}

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