x^2-153x+720=0

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Solution for x^2-153x+720=0 equation:


Simplifying
x2 + -153x + 720 = 0

Reorder the terms:
720 + -153x + x2 = 0

Solving
720 + -153x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-720' to each side of the equation.
720 + -153x + -720 + x2 = 0 + -720

Reorder the terms:
720 + -720 + -153x + x2 = 0 + -720

Combine like terms: 720 + -720 = 0
0 + -153x + x2 = 0 + -720
-153x + x2 = 0 + -720

Combine like terms: 0 + -720 = -720
-153x + x2 = -720

The x term is -153x.  Take half its coefficient (-76.5).
Square it (5852.25) and add it to both sides.

Add '5852.25' to each side of the equation.
-153x + 5852.25 + x2 = -720 + 5852.25

Reorder the terms:
5852.25 + -153x + x2 = -720 + 5852.25

Combine like terms: -720 + 5852.25 = 5132.25
5852.25 + -153x + x2 = 5132.25

Factor a perfect square on the left side:
(x + -76.5)(x + -76.5) = 5132.25

Calculate the square root of the right side: 71.639723618

Break this problem into two subproblems by setting 
(x + -76.5) equal to 71.639723618 and -71.639723618.

Subproblem 1

x + -76.5 = 71.639723618 Simplifying x + -76.5 = 71.639723618 Reorder the terms: -76.5 + x = 71.639723618 Solving -76.5 + x = 71.639723618 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '76.5' to each side of the equation. -76.5 + 76.5 + x = 71.639723618 + 76.5 Combine like terms: -76.5 + 76.5 = 0.0 0.0 + x = 71.639723618 + 76.5 x = 71.639723618 + 76.5 Combine like terms: 71.639723618 + 76.5 = 148.139723618 x = 148.139723618 Simplifying x = 148.139723618

Subproblem 2

x + -76.5 = -71.639723618 Simplifying x + -76.5 = -71.639723618 Reorder the terms: -76.5 + x = -71.639723618 Solving -76.5 + x = -71.639723618 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '76.5' to each side of the equation. -76.5 + 76.5 + x = -71.639723618 + 76.5 Combine like terms: -76.5 + 76.5 = 0.0 0.0 + x = -71.639723618 + 76.5 x = -71.639723618 + 76.5 Combine like terms: -71.639723618 + 76.5 = 4.860276382 x = 4.860276382 Simplifying x = 4.860276382

Solution

The solution to the problem is based on the solutions from the subproblems. x = {148.139723618, 4.860276382}

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