x^2-16x=.35

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Solution for x^2-16x=.35 equation:


Simplifying
x2 + -16x = 0.35

Reorder the terms:
-16x + x2 = 0.35

Solving
-16x + x2 = 0.35

Solving for variable 'x'.

Reorder the terms:
-0.35 + -16x + x2 = 0.35 + -0.35

Combine like terms: 0.35 + -0.35 = 0.00
-0.35 + -16x + x2 = 0.00

Begin completing the square.

Move the constant term to the right:

Add '0.35' to each side of the equation.
-0.35 + -16x + 0.35 + x2 = 0.00 + 0.35

Reorder the terms:
-0.35 + 0.35 + -16x + x2 = 0.00 + 0.35

Combine like terms: -0.35 + 0.35 = 0.00
0.00 + -16x + x2 = 0.00 + 0.35
-16x + x2 = 0.00 + 0.35

Combine like terms: 0.00 + 0.35 = 0.35
-16x + x2 = 0.35

The x term is -16x.  Take half its coefficient (-8).
Square it (64) and add it to both sides.

Add '64' to each side of the equation.
-16x + 64 + x2 = 0.35 + 64

Reorder the terms:
64 + -16x + x2 = 0.35 + 64

Combine like terms: 0.35 + 64 = 64.35
64 + -16x + x2 = 64.35

Factor a perfect square on the left side:
(x + -8)(x + -8) = 64.35

Calculate the square root of the right side: 8.021845174

Break this problem into two subproblems by setting 
(x + -8) equal to 8.021845174 and -8.021845174.

Subproblem 1

x + -8 = 8.021845174 Simplifying x + -8 = 8.021845174 Reorder the terms: -8 + x = 8.021845174 Solving -8 + x = 8.021845174 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '8' to each side of the equation. -8 + 8 + x = 8.021845174 + 8 Combine like terms: -8 + 8 = 0 0 + x = 8.021845174 + 8 x = 8.021845174 + 8 Combine like terms: 8.021845174 + 8 = 16.021845174 x = 16.021845174 Simplifying x = 16.021845174

Subproblem 2

x + -8 = -8.021845174 Simplifying x + -8 = -8.021845174 Reorder the terms: -8 + x = -8.021845174 Solving -8 + x = -8.021845174 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '8' to each side of the equation. -8 + 8 + x = -8.021845174 + 8 Combine like terms: -8 + 8 = 0 0 + x = -8.021845174 + 8 x = -8.021845174 + 8 Combine like terms: -8.021845174 + 8 = -0.021845174 x = -0.021845174 Simplifying x = -0.021845174

Solution

The solution to the problem is based on the solutions from the subproblems. x = {16.021845174, -0.021845174}

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