160x-60-7x^2=0

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Solution for 160x-60-7x^2=0 equation:


Simplifying
160x + -60 + -7x2 = 0

Reorder the terms:
-60 + 160x + -7x2 = 0

Solving
-60 + 160x + -7x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-7 the coefficient of the squared term: 

Divide each side by '-7'.
8.571428571 + -22.85714286x + x2 = 0

Move the constant term to the right:

Add '-8.571428571' to each side of the equation.
8.571428571 + -22.85714286x + -8.571428571 + x2 = 0 + -8.571428571

Reorder the terms:
8.571428571 + -8.571428571 + -22.85714286x + x2 = 0 + -8.571428571

Combine like terms: 8.571428571 + -8.571428571 = 0.000000000
0.000000000 + -22.85714286x + x2 = 0 + -8.571428571
-22.85714286x + x2 = 0 + -8.571428571

Combine like terms: 0 + -8.571428571 = -8.571428571
-22.85714286x + x2 = -8.571428571

The x term is -22.85714286x.  Take half its coefficient (-11.42857143).
Square it (130.6122449) and add it to both sides.

Add '130.6122449' to each side of the equation.
-22.85714286x + 130.6122449 + x2 = -8.571428571 + 130.6122449

Reorder the terms:
130.6122449 + -22.85714286x + x2 = -8.571428571 + 130.6122449

Combine like terms: -8.571428571 + 130.6122449 = 122.040816329
130.6122449 + -22.85714286x + x2 = 122.040816329

Factor a perfect square on the left side:
(x + -11.42857143)(x + -11.42857143) = 122.040816329

Calculate the square root of the right side: 11.047208531

Break this problem into two subproblems by setting 
(x + -11.42857143) equal to 11.047208531 and -11.047208531.

Subproblem 1

x + -11.42857143 = 11.047208531 Simplifying x + -11.42857143 = 11.047208531 Reorder the terms: -11.42857143 + x = 11.047208531 Solving -11.42857143 + x = 11.047208531 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '11.42857143' to each side of the equation. -11.42857143 + 11.42857143 + x = 11.047208531 + 11.42857143 Combine like terms: -11.42857143 + 11.42857143 = 0.00000000 0.00000000 + x = 11.047208531 + 11.42857143 x = 11.047208531 + 11.42857143 Combine like terms: 11.047208531 + 11.42857143 = 22.475779961 x = 22.475779961 Simplifying x = 22.475779961

Subproblem 2

x + -11.42857143 = -11.047208531 Simplifying x + -11.42857143 = -11.047208531 Reorder the terms: -11.42857143 + x = -11.047208531 Solving -11.42857143 + x = -11.047208531 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '11.42857143' to each side of the equation. -11.42857143 + 11.42857143 + x = -11.047208531 + 11.42857143 Combine like terms: -11.42857143 + 11.42857143 = 0.00000000 0.00000000 + x = -11.047208531 + 11.42857143 x = -11.047208531 + 11.42857143 Combine like terms: -11.047208531 + 11.42857143 = 0.381362899 x = 0.381362899 Simplifying x = 0.381362899

Solution

The solution to the problem is based on the solutions from the subproblems. x = {22.475779961, 0.381362899}

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