60(x)=60-4.9x^2

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Solution for 60(x)=60-4.9x^2 equation:


Simplifying
60(x) = 60 + -4.9x2

Solving
60x = 60 + -4.9x2

Solving for variable 'x'.

Reorder the terms:
-60 + 60x + 4.9x2 = 60 + -4.9x2 + -60 + 4.9x2

Reorder the terms:
-60 + 60x + 4.9x2 = 60 + -60 + -4.9x2 + 4.9x2

Combine like terms: 60 + -60 = 0
-60 + 60x + 4.9x2 = 0 + -4.9x2 + 4.9x2
-60 + 60x + 4.9x2 = -4.9x2 + 4.9x2

Combine like terms: -4.9x2 + 4.9x2 = 0.0
-60 + 60x + 4.9x2 = 0.0

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

Divide each side by '4.9'.
-12.24489796 + 12.24489796x + x2 = 0

Move the constant term to the right:

Add '12.24489796' to each side of the equation.
-12.24489796 + 12.24489796x + 12.24489796 + x2 = 0 + 12.24489796

Reorder the terms:
-12.24489796 + 12.24489796 + 12.24489796x + x2 = 0 + 12.24489796

Combine like terms: -12.24489796 + 12.24489796 = 0.00000000
0.00000000 + 12.24489796x + x2 = 0 + 12.24489796
12.24489796x + x2 = 0 + 12.24489796

Combine like terms: 0 + 12.24489796 = 12.24489796
12.24489796x + x2 = 12.24489796

The x term is 12.24489796x.  Take half its coefficient (6.12244898).
Square it (37.48438151) and add it to both sides.

Add '37.48438151' to each side of the equation.
12.24489796x + 37.48438151 + x2 = 12.24489796 + 37.48438151

Reorder the terms:
37.48438151 + 12.24489796x + x2 = 12.24489796 + 37.48438151

Combine like terms: 12.24489796 + 37.48438151 = 49.72927947
37.48438151 + 12.24489796x + x2 = 49.72927947

Factor a perfect square on the left side:
(x + 6.12244898)(x + 6.12244898) = 49.72927947

Calculate the square root of the right side: 7.051898997

Break this problem into two subproblems by setting 
(x + 6.12244898) equal to 7.051898997 and -7.051898997.

Subproblem 1

x + 6.12244898 = 7.051898997 Simplifying x + 6.12244898 = 7.051898997 Reorder the terms: 6.12244898 + x = 7.051898997 Solving 6.12244898 + x = 7.051898997 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-6.12244898' to each side of the equation. 6.12244898 + -6.12244898 + x = 7.051898997 + -6.12244898 Combine like terms: 6.12244898 + -6.12244898 = 0.00000000 0.00000000 + x = 7.051898997 + -6.12244898 x = 7.051898997 + -6.12244898 Combine like terms: 7.051898997 + -6.12244898 = 0.929450017 x = 0.929450017 Simplifying x = 0.929450017

Subproblem 2

x + 6.12244898 = -7.051898997 Simplifying x + 6.12244898 = -7.051898997 Reorder the terms: 6.12244898 + x = -7.051898997 Solving 6.12244898 + x = -7.051898997 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-6.12244898' to each side of the equation. 6.12244898 + -6.12244898 + x = -7.051898997 + -6.12244898 Combine like terms: 6.12244898 + -6.12244898 = 0.00000000 0.00000000 + x = -7.051898997 + -6.12244898 x = -7.051898997 + -6.12244898 Combine like terms: -7.051898997 + -6.12244898 = -13.174347977 x = -13.174347977 Simplifying x = -13.174347977

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.929450017, -13.174347977}

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