16x^2-40x+25=10

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Solution for 16x^2-40x+25=10 equation:


Simplifying
16x2 + -40x + 25 = 10

Reorder the terms:
25 + -40x + 16x2 = 10

Solving
25 + -40x + 16x2 = 10

Solving for variable 'x'.

Reorder the terms:
25 + -10 + -40x + 16x2 = 10 + -10

Combine like terms: 25 + -10 = 15
15 + -40x + 16x2 = 10 + -10

Combine like terms: 10 + -10 = 0
15 + -40x + 16x2 = 0

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

Divide each side by '16'.
0.9375 + -2.5x + x2 = 0

Move the constant term to the right:

Add '-0.9375' to each side of the equation.
0.9375 + -2.5x + -0.9375 + x2 = 0 + -0.9375

Reorder the terms:
0.9375 + -0.9375 + -2.5x + x2 = 0 + -0.9375

Combine like terms: 0.9375 + -0.9375 = 0.0000
0.0000 + -2.5x + x2 = 0 + -0.9375
-2.5x + x2 = 0 + -0.9375

Combine like terms: 0 + -0.9375 = -0.9375
-2.5x + x2 = -0.9375

The x term is -2.5x.  Take half its coefficient (-1.25).
Square it (1.5625) and add it to both sides.

Add '1.5625' to each side of the equation.
-2.5x + 1.5625 + x2 = -0.9375 + 1.5625

Reorder the terms:
1.5625 + -2.5x + x2 = -0.9375 + 1.5625

Combine like terms: -0.9375 + 1.5625 = 0.625
1.5625 + -2.5x + x2 = 0.625

Factor a perfect square on the left side:
(x + -1.25)(x + -1.25) = 0.625

Calculate the square root of the right side: 0.790569415

Break this problem into two subproblems by setting 
(x + -1.25) equal to 0.790569415 and -0.790569415.

Subproblem 1

x + -1.25 = 0.790569415 Simplifying x + -1.25 = 0.790569415 Reorder the terms: -1.25 + x = 0.790569415 Solving -1.25 + x = 0.790569415 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.25' to each side of the equation. -1.25 + 1.25 + x = 0.790569415 + 1.25 Combine like terms: -1.25 + 1.25 = 0.00 0.00 + x = 0.790569415 + 1.25 x = 0.790569415 + 1.25 Combine like terms: 0.790569415 + 1.25 = 2.040569415 x = 2.040569415 Simplifying x = 2.040569415

Subproblem 2

x + -1.25 = -0.790569415 Simplifying x + -1.25 = -0.790569415 Reorder the terms: -1.25 + x = -0.790569415 Solving -1.25 + x = -0.790569415 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.25' to each side of the equation. -1.25 + 1.25 + x = -0.790569415 + 1.25 Combine like terms: -1.25 + 1.25 = 0.00 0.00 + x = -0.790569415 + 1.25 x = -0.790569415 + 1.25 Combine like terms: -0.790569415 + 1.25 = 0.459430585 x = 0.459430585 Simplifying x = 0.459430585

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.040569415, 0.459430585}

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