17.5=16x(x+2)

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Solution for 17.5=16x(x+2) equation:


Simplifying
17.5 = 16x(x + 2)

Reorder the terms:
17.5 = 16x(2 + x)
17.5 = (2 * 16x + x * 16x)
17.5 = (32x + 16x2)

Solving
17.5 = 32x + 16x2

Solving for variable 'x'.

Reorder the terms:
17.5 + -32x + -16x2 = 32x + -32x + 16x2 + -16x2

Combine like terms: 32x + -32x = 0
17.5 + -32x + -16x2 = 0 + 16x2 + -16x2
17.5 + -32x + -16x2 = 16x2 + -16x2

Combine like terms: 16x2 + -16x2 = 0
17.5 + -32x + -16x2 = 0

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

Divide each side by '-16'.
-1.09375 + 2x + x2 = 0

Move the constant term to the right:

Add '1.09375' to each side of the equation.
-1.09375 + 2x + 1.09375 + x2 = 0 + 1.09375

Reorder the terms:
-1.09375 + 1.09375 + 2x + x2 = 0 + 1.09375

Combine like terms: -1.09375 + 1.09375 = 0.00000
0.00000 + 2x + x2 = 0 + 1.09375
2x + x2 = 0 + 1.09375

Combine like terms: 0 + 1.09375 = 1.09375
2x + x2 = 1.09375

The x term is 2x.  Take half its coefficient (1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
2x + 1 + x2 = 1.09375 + 1

Reorder the terms:
1 + 2x + x2 = 1.09375 + 1

Combine like terms: 1.09375 + 1 = 2.09375
1 + 2x + x2 = 2.09375

Factor a perfect square on the left side:
(x + 1)(x + 1) = 2.09375

Calculate the square root of the right side: 1.446979613

Break this problem into two subproblems by setting 
(x + 1) equal to 1.446979613 and -1.446979613.

Subproblem 1

x + 1 = 1.446979613 Simplifying x + 1 = 1.446979613 Reorder the terms: 1 + x = 1.446979613 Solving 1 + x = 1.446979613 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + x = 1.446979613 + -1 Combine like terms: 1 + -1 = 0 0 + x = 1.446979613 + -1 x = 1.446979613 + -1 Combine like terms: 1.446979613 + -1 = 0.446979613 x = 0.446979613 Simplifying x = 0.446979613

Subproblem 2

x + 1 = -1.446979613 Simplifying x + 1 = -1.446979613 Reorder the terms: 1 + x = -1.446979613 Solving 1 + x = -1.446979613 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + x = -1.446979613 + -1 Combine like terms: 1 + -1 = 0 0 + x = -1.446979613 + -1 x = -1.446979613 + -1 Combine like terms: -1.446979613 + -1 = -2.446979613 x = -2.446979613 Simplifying x = -2.446979613

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.446979613, -2.446979613}

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