7x^2-60x-50=0

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Solution for 7x^2-60x-50=0 equation:


Simplifying
7x2 + -60x + -50 = 0

Reorder the terms:
-50 + -60x + 7x2 = 0

Solving
-50 + -60x + 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'.
-7.142857143 + -8.571428571x + x2 = 0

Move the constant term to the right:

Add '7.142857143' to each side of the equation.
-7.142857143 + -8.571428571x + 7.142857143 + x2 = 0 + 7.142857143

Reorder the terms:
-7.142857143 + 7.142857143 + -8.571428571x + x2 = 0 + 7.142857143

Combine like terms: -7.142857143 + 7.142857143 = 0.000000000
0.000000000 + -8.571428571x + x2 = 0 + 7.142857143
-8.571428571x + x2 = 0 + 7.142857143

Combine like terms: 0 + 7.142857143 = 7.142857143
-8.571428571x + x2 = 7.142857143

The x term is -8.571428571x.  Take half its coefficient (-4.285714286).
Square it (18.36734694) and add it to both sides.

Add '18.36734694' to each side of the equation.
-8.571428571x + 18.36734694 + x2 = 7.142857143 + 18.36734694

Reorder the terms:
18.36734694 + -8.571428571x + x2 = 7.142857143 + 18.36734694

Combine like terms: 7.142857143 + 18.36734694 = 25.510204083
18.36734694 + -8.571428571x + x2 = 25.510204083

Factor a perfect square on the left side:
(x + -4.285714286)(x + -4.285714286) = 25.510204083

Calculate the square root of the right side: 5.050762723

Break this problem into two subproblems by setting 
(x + -4.285714286) equal to 5.050762723 and -5.050762723.

Subproblem 1

x + -4.285714286 = 5.050762723 Simplifying x + -4.285714286 = 5.050762723 Reorder the terms: -4.285714286 + x = 5.050762723 Solving -4.285714286 + x = 5.050762723 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4.285714286' to each side of the equation. -4.285714286 + 4.285714286 + x = 5.050762723 + 4.285714286 Combine like terms: -4.285714286 + 4.285714286 = 0.000000000 0.000000000 + x = 5.050762723 + 4.285714286 x = 5.050762723 + 4.285714286 Combine like terms: 5.050762723 + 4.285714286 = 9.336477009 x = 9.336477009 Simplifying x = 9.336477009

Subproblem 2

x + -4.285714286 = -5.050762723 Simplifying x + -4.285714286 = -5.050762723 Reorder the terms: -4.285714286 + x = -5.050762723 Solving -4.285714286 + x = -5.050762723 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4.285714286' to each side of the equation. -4.285714286 + 4.285714286 + x = -5.050762723 + 4.285714286 Combine like terms: -4.285714286 + 4.285714286 = 0.000000000 0.000000000 + x = -5.050762723 + 4.285714286 x = -5.050762723 + 4.285714286 Combine like terms: -5.050762723 + 4.285714286 = -0.765048437 x = -0.765048437 Simplifying x = -0.765048437

Solution

The solution to the problem is based on the solutions from the subproblems. x = {9.336477009, -0.765048437}

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