60+70x-x^2=0

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Solution for 60+70x-x^2=0 equation:


Simplifying
60 + 70x + -1x2 = 0

Solving
60 + 70x + -1x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
-60 + -70x + x2 = 0

Move the constant term to the right:

Add '60' to each side of the equation.
-60 + -70x + 60 + x2 = 0 + 60

Reorder the terms:
-60 + 60 + -70x + x2 = 0 + 60

Combine like terms: -60 + 60 = 0
0 + -70x + x2 = 0 + 60
-70x + x2 = 0 + 60

Combine like terms: 0 + 60 = 60
-70x + x2 = 60

The x term is -70x.  Take half its coefficient (-35).
Square it (1225) and add it to both sides.

Add '1225' to each side of the equation.
-70x + 1225 + x2 = 60 + 1225

Reorder the terms:
1225 + -70x + x2 = 60 + 1225

Combine like terms: 60 + 1225 = 1285
1225 + -70x + x2 = 1285

Factor a perfect square on the left side:
(x + -35)(x + -35) = 1285

Calculate the square root of the right side: 35.846896658

Break this problem into two subproblems by setting 
(x + -35) equal to 35.846896658 and -35.846896658.

Subproblem 1

x + -35 = 35.846896658 Simplifying x + -35 = 35.846896658 Reorder the terms: -35 + x = 35.846896658 Solving -35 + x = 35.846896658 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '35' to each side of the equation. -35 + 35 + x = 35.846896658 + 35 Combine like terms: -35 + 35 = 0 0 + x = 35.846896658 + 35 x = 35.846896658 + 35 Combine like terms: 35.846896658 + 35 = 70.846896658 x = 70.846896658 Simplifying x = 70.846896658

Subproblem 2

x + -35 = -35.846896658 Simplifying x + -35 = -35.846896658 Reorder the terms: -35 + x = -35.846896658 Solving -35 + x = -35.846896658 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '35' to each side of the equation. -35 + 35 + x = -35.846896658 + 35 Combine like terms: -35 + 35 = 0 0 + x = -35.846896658 + 35 x = -35.846896658 + 35 Combine like terms: -35.846896658 + 35 = -0.846896658 x = -0.846896658 Simplifying x = -0.846896658

Solution

The solution to the problem is based on the solutions from the subproblems. x = {70.846896658, -0.846896658}

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