7.75(x)-(-3x^2+425x+22675)=

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Solution for 7.75(x)-(-3x^2+425x+22675)= equation:


Simplifying
7.75(x) + -1(-3x2 + 425x + 22675) = 0

Reorder the terms:
7.75x + -1(22675 + 425x + -3x2) = 0
7.75x + (22675 * -1 + 425x * -1 + -3x2 * -1) = 0
7.75x + (-22675 + -425x + 3x2) = 0

Reorder the terms:
-22675 + 7.75x + -425x + 3x2 = 0

Combine like terms: 7.75x + -425x = -417.25x
-22675 + -417.25x + 3x2 = 0

Solving
-22675 + -417.25x + 3x2 = 0

Solving for variable 'x'.

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

Divide each side by '3'.
-7558.333333 + -139.0833333x + x2 = 0

Move the constant term to the right:

Add '7558.333333' to each side of the equation.
-7558.333333 + -139.0833333x + 7558.333333 + x2 = 0 + 7558.333333

Reorder the terms:
-7558.333333 + 7558.333333 + -139.0833333x + x2 = 0 + 7558.333333

Combine like terms: -7558.333333 + 7558.333333 = 0.000000
0.000000 + -139.0833333x + x2 = 0 + 7558.333333
-139.0833333x + x2 = 0 + 7558.333333

Combine like terms: 0 + 7558.333333 = 7558.333333
-139.0833333x + x2 = 7558.333333

The x term is -139.0833333x.  Take half its coefficient (-69.54166665).
Square it (4836.043400) and add it to both sides.

Add '4836.043400' to each side of the equation.
-139.0833333x + 4836.043400 + x2 = 7558.333333 + 4836.043400

Reorder the terms:
4836.043400 + -139.0833333x + x2 = 7558.333333 + 4836.043400

Combine like terms: 7558.333333 + 4836.043400 = 12394.376733
4836.043400 + -139.0833333x + x2 = 12394.376733

Factor a perfect square on the left side:
(x + -69.54166665)(x + -69.54166665) = 12394.376733

Calculate the square root of the right side: 111.330035179

Break this problem into two subproblems by setting 
(x + -69.54166665) equal to 111.330035179 and -111.330035179.

Subproblem 1

x + -69.54166665 = 111.330035179 Simplifying x + -69.54166665 = 111.330035179 Reorder the terms: -69.54166665 + x = 111.330035179 Solving -69.54166665 + x = 111.330035179 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '69.54166665' to each side of the equation. -69.54166665 + 69.54166665 + x = 111.330035179 + 69.54166665 Combine like terms: -69.54166665 + 69.54166665 = 0.00000000 0.00000000 + x = 111.330035179 + 69.54166665 x = 111.330035179 + 69.54166665 Combine like terms: 111.330035179 + 69.54166665 = 180.871701829 x = 180.871701829 Simplifying x = 180.871701829

Subproblem 2

x + -69.54166665 = -111.330035179 Simplifying x + -69.54166665 = -111.330035179 Reorder the terms: -69.54166665 + x = -111.330035179 Solving -69.54166665 + x = -111.330035179 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '69.54166665' to each side of the equation. -69.54166665 + 69.54166665 + x = -111.330035179 + 69.54166665 Combine like terms: -69.54166665 + 69.54166665 = 0.00000000 0.00000000 + x = -111.330035179 + 69.54166665 x = -111.330035179 + 69.54166665 Combine like terms: -111.330035179 + 69.54166665 = -41.788368529 x = -41.788368529 Simplifying x = -41.788368529

Solution

The solution to the problem is based on the solutions from the subproblems. x = {180.871701829, -41.788368529}

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