X^2+4=10X

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Solution for X^2+4=10X equation:


Simplifying
X2 + 4 = 10X

Reorder the terms:
4 + X2 = 10X

Solving
4 + X2 = 10X

Solving for variable 'X'.

Reorder the terms:
4 + -10X + X2 = 10X + -10X

Combine like terms: 10X + -10X = 0
4 + -10X + X2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-4' to each side of the equation.
4 + -10X + -4 + X2 = 0 + -4

Reorder the terms:
4 + -4 + -10X + X2 = 0 + -4

Combine like terms: 4 + -4 = 0
0 + -10X + X2 = 0 + -4
-10X + X2 = 0 + -4

Combine like terms: 0 + -4 = -4
-10X + X2 = -4

The X term is -10X.  Take half its coefficient (-5).
Square it (25) and add it to both sides.

Add '25' to each side of the equation.
-10X + 25 + X2 = -4 + 25

Reorder the terms:
25 + -10X + X2 = -4 + 25

Combine like terms: -4 + 25 = 21
25 + -10X + X2 = 21

Factor a perfect square on the left side:
(X + -5)(X + -5) = 21

Calculate the square root of the right side: 4.582575695

Break this problem into two subproblems by setting 
(X + -5) equal to 4.582575695 and -4.582575695.

Subproblem 1

X + -5 = 4.582575695 Simplifying X + -5 = 4.582575695 Reorder the terms: -5 + X = 4.582575695 Solving -5 + X = 4.582575695 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + X = 4.582575695 + 5 Combine like terms: -5 + 5 = 0 0 + X = 4.582575695 + 5 X = 4.582575695 + 5 Combine like terms: 4.582575695 + 5 = 9.582575695 X = 9.582575695 Simplifying X = 9.582575695

Subproblem 2

X + -5 = -4.582575695 Simplifying X + -5 = -4.582575695 Reorder the terms: -5 + X = -4.582575695 Solving -5 + X = -4.582575695 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + X = -4.582575695 + 5 Combine like terms: -5 + 5 = 0 0 + X = -4.582575695 + 5 X = -4.582575695 + 5 Combine like terms: -4.582575695 + 5 = 0.417424305 X = 0.417424305 Simplifying X = 0.417424305

Solution

The solution to the problem is based on the solutions from the subproblems. X = {9.582575695, 0.417424305}

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