33x^2-7x-4000=0

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Solution for 33x^2-7x-4000=0 equation:


Simplifying
33x2 + -7x + -4000 = 0

Reorder the terms:
-4000 + -7x + 33x2 = 0

Solving
-4000 + -7x + 33x2 = 0

Solving for variable 'x'.

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

Divide each side by '33'.
-121.2121212 + -0.2121212121x + x2 = 0

Move the constant term to the right:

Add '121.2121212' to each side of the equation.
-121.2121212 + -0.2121212121x + 121.2121212 + x2 = 0 + 121.2121212

Reorder the terms:
-121.2121212 + 121.2121212 + -0.2121212121x + x2 = 0 + 121.2121212

Combine like terms: -121.2121212 + 121.2121212 = 0.0000000
0.0000000 + -0.2121212121x + x2 = 0 + 121.2121212
-0.2121212121x + x2 = 0 + 121.2121212

Combine like terms: 0 + 121.2121212 = 121.2121212
-0.2121212121x + x2 = 121.2121212

The x term is -0.2121212121x.  Take half its coefficient (-0.1060606061).
Square it (0.01124885217) and add it to both sides.

Add '0.01124885217' to each side of the equation.
-0.2121212121x + 0.01124885217 + x2 = 121.2121212 + 0.01124885217

Reorder the terms:
0.01124885217 + -0.2121212121x + x2 = 121.2121212 + 0.01124885217

Combine like terms: 121.2121212 + 0.01124885217 = 121.22337005217
0.01124885217 + -0.2121212121x + x2 = 121.22337005217

Factor a perfect square on the left side:
(x + -0.1060606061)(x + -0.1060606061) = 121.22337005217

Calculate the square root of the right side: 11.010148503

Break this problem into two subproblems by setting 
(x + -0.1060606061) equal to 11.010148503 and -11.010148503.

Subproblem 1

x + -0.1060606061 = 11.010148503 Simplifying x + -0.1060606061 = 11.010148503 Reorder the terms: -0.1060606061 + x = 11.010148503 Solving -0.1060606061 + x = 11.010148503 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.1060606061' to each side of the equation. -0.1060606061 + 0.1060606061 + x = 11.010148503 + 0.1060606061 Combine like terms: -0.1060606061 + 0.1060606061 = 0.0000000000 0.0000000000 + x = 11.010148503 + 0.1060606061 x = 11.010148503 + 0.1060606061 Combine like terms: 11.010148503 + 0.1060606061 = 11.1162091091 x = 11.1162091091 Simplifying x = 11.1162091091

Subproblem 2

x + -0.1060606061 = -11.010148503 Simplifying x + -0.1060606061 = -11.010148503 Reorder the terms: -0.1060606061 + x = -11.010148503 Solving -0.1060606061 + x = -11.010148503 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.1060606061' to each side of the equation. -0.1060606061 + 0.1060606061 + x = -11.010148503 + 0.1060606061 Combine like terms: -0.1060606061 + 0.1060606061 = 0.0000000000 0.0000000000 + x = -11.010148503 + 0.1060606061 x = -11.010148503 + 0.1060606061 Combine like terms: -11.010148503 + 0.1060606061 = -10.9040878969 x = -10.9040878969 Simplifying x = -10.9040878969

Solution

The solution to the problem is based on the solutions from the subproblems. x = {11.1162091091, -10.9040878969}

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