17x(4x-9)=61

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Solution for 17x(4x-9)=61 equation:


Simplifying
17x(4x + -9) = 61

Reorder the terms:
17x(-9 + 4x) = 61
(-9 * 17x + 4x * 17x) = 61
(-153x + 68x2) = 61

Solving
-153x + 68x2 = 61

Solving for variable 'x'.

Reorder the terms:
-61 + -153x + 68x2 = 61 + -61

Combine like terms: 61 + -61 = 0
-61 + -153x + 68x2 = 0

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

Divide each side by '68'.
-0.8970588235 + -2.25x + x2 = 0

Move the constant term to the right:

Add '0.8970588235' to each side of the equation.
-0.8970588235 + -2.25x + 0.8970588235 + x2 = 0 + 0.8970588235

Reorder the terms:
-0.8970588235 + 0.8970588235 + -2.25x + x2 = 0 + 0.8970588235

Combine like terms: -0.8970588235 + 0.8970588235 = 0.0000000000
0.0000000000 + -2.25x + x2 = 0 + 0.8970588235
-2.25x + x2 = 0 + 0.8970588235

Combine like terms: 0 + 0.8970588235 = 0.8970588235
-2.25x + x2 = 0.8970588235

The x term is -2.25x.  Take half its coefficient (-1.125).
Square it (1.265625) and add it to both sides.

Add '1.265625' to each side of the equation.
-2.25x + 1.265625 + x2 = 0.8970588235 + 1.265625

Reorder the terms:
1.265625 + -2.25x + x2 = 0.8970588235 + 1.265625

Combine like terms: 0.8970588235 + 1.265625 = 2.1626838235
1.265625 + -2.25x + x2 = 2.1626838235

Factor a perfect square on the left side:
(x + -1.125)(x + -1.125) = 2.1626838235

Calculate the square root of the right side: 1.470606618

Break this problem into two subproblems by setting 
(x + -1.125) equal to 1.470606618 and -1.470606618.

Subproblem 1

x + -1.125 = 1.470606618 Simplifying x + -1.125 = 1.470606618 Reorder the terms: -1.125 + x = 1.470606618 Solving -1.125 + x = 1.470606618 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.125' to each side of the equation. -1.125 + 1.125 + x = 1.470606618 + 1.125 Combine like terms: -1.125 + 1.125 = 0.000 0.000 + x = 1.470606618 + 1.125 x = 1.470606618 + 1.125 Combine like terms: 1.470606618 + 1.125 = 2.595606618 x = 2.595606618 Simplifying x = 2.595606618

Subproblem 2

x + -1.125 = -1.470606618 Simplifying x + -1.125 = -1.470606618 Reorder the terms: -1.125 + x = -1.470606618 Solving -1.125 + x = -1.470606618 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.125' to each side of the equation. -1.125 + 1.125 + x = -1.470606618 + 1.125 Combine like terms: -1.125 + 1.125 = 0.000 0.000 + x = -1.470606618 + 1.125 x = -1.470606618 + 1.125 Combine like terms: -1.470606618 + 1.125 = -0.345606618 x = -0.345606618 Simplifying x = -0.345606618

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.595606618, -0.345606618}

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