16x^2+61=64x

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Solution for 16x^2+61=64x equation:


Simplifying
16x2 + 61 = 64x

Reorder the terms:
61 + 16x2 = 64x

Solving
61 + 16x2 = 64x

Solving for variable 'x'.

Reorder the terms:
61 + -64x + 16x2 = 64x + -64x

Combine like terms: 64x + -64x = 0
61 + -64x + 16x2 = 0

Begin completing the square.  Divide all terms by
16 the coefficient of the squared term: 

Divide each side by '16'.
3.8125 + -4x + x2 = 0

Move the constant term to the right:

Add '-3.8125' to each side of the equation.
3.8125 + -4x + -3.8125 + x2 = 0 + -3.8125

Reorder the terms:
3.8125 + -3.8125 + -4x + x2 = 0 + -3.8125

Combine like terms: 3.8125 + -3.8125 = 0.0000
0.0000 + -4x + x2 = 0 + -3.8125
-4x + x2 = 0 + -3.8125

Combine like terms: 0 + -3.8125 = -3.8125
-4x + x2 = -3.8125

The x term is -4x.  Take half its coefficient (-2).
Square it (4) and add it to both sides.

Add '4' to each side of the equation.
-4x + 4 + x2 = -3.8125 + 4

Reorder the terms:
4 + -4x + x2 = -3.8125 + 4

Combine like terms: -3.8125 + 4 = 0.1875
4 + -4x + x2 = 0.1875

Factor a perfect square on the left side:
(x + -2)(x + -2) = 0.1875

Calculate the square root of the right side: 0.433012702

Break this problem into two subproblems by setting 
(x + -2) equal to 0.433012702 and -0.433012702.

Subproblem 1

x + -2 = 0.433012702 Simplifying x + -2 = 0.433012702 Reorder the terms: -2 + x = 0.433012702 Solving -2 + x = 0.433012702 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + x = 0.433012702 + 2 Combine like terms: -2 + 2 = 0 0 + x = 0.433012702 + 2 x = 0.433012702 + 2 Combine like terms: 0.433012702 + 2 = 2.433012702 x = 2.433012702 Simplifying x = 2.433012702

Subproblem 2

x + -2 = -0.433012702 Simplifying x + -2 = -0.433012702 Reorder the terms: -2 + x = -0.433012702 Solving -2 + x = -0.433012702 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + x = -0.433012702 + 2 Combine like terms: -2 + 2 = 0 0 + x = -0.433012702 + 2 x = -0.433012702 + 2 Combine like terms: -0.433012702 + 2 = 1.566987298 x = 1.566987298 Simplifying x = 1.566987298

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.433012702, 1.566987298}

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