-16x^2+880x+70.7=0

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Solution for -16x^2+880x+70.7=0 equation:


Simplifying
-16x2 + 880x + 70.7 = 0

Reorder the terms:
70.7 + 880x + -16x2 = 0

Solving
70.7 + 880x + -16x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-16 the coefficient of the squared term: 

Divide each side by '-16'.
-4.41875 + -55x + x2 = 0

Move the constant term to the right:

Add '4.41875' to each side of the equation.
-4.41875 + -55x + 4.41875 + x2 = 0 + 4.41875

Reorder the terms:
-4.41875 + 4.41875 + -55x + x2 = 0 + 4.41875

Combine like terms: -4.41875 + 4.41875 = 0.00000
0.00000 + -55x + x2 = 0 + 4.41875
-55x + x2 = 0 + 4.41875

Combine like terms: 0 + 4.41875 = 4.41875
-55x + x2 = 4.41875

The x term is -55x.  Take half its coefficient (-27.5).
Square it (756.25) and add it to both sides.

Add '756.25' to each side of the equation.
-55x + 756.25 + x2 = 4.41875 + 756.25

Reorder the terms:
756.25 + -55x + x2 = 4.41875 + 756.25

Combine like terms: 4.41875 + 756.25 = 760.66875
756.25 + -55x + x2 = 760.66875

Factor a perfect square on the left side:
(x + -27.5)(x + -27.5) = 760.66875

Calculate the square root of the right side: 27.580223893

Break this problem into two subproblems by setting 
(x + -27.5) equal to 27.580223893 and -27.580223893.

Subproblem 1

x + -27.5 = 27.580223893 Simplifying x + -27.5 = 27.580223893 Reorder the terms: -27.5 + x = 27.580223893 Solving -27.5 + x = 27.580223893 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '27.5' to each side of the equation. -27.5 + 27.5 + x = 27.580223893 + 27.5 Combine like terms: -27.5 + 27.5 = 0.0 0.0 + x = 27.580223893 + 27.5 x = 27.580223893 + 27.5 Combine like terms: 27.580223893 + 27.5 = 55.080223893 x = 55.080223893 Simplifying x = 55.080223893

Subproblem 2

x + -27.5 = -27.580223893 Simplifying x + -27.5 = -27.580223893 Reorder the terms: -27.5 + x = -27.580223893 Solving -27.5 + x = -27.580223893 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '27.5' to each side of the equation. -27.5 + 27.5 + x = -27.580223893 + 27.5 Combine like terms: -27.5 + 27.5 = 0.0 0.0 + x = -27.580223893 + 27.5 x = -27.580223893 + 27.5 Combine like terms: -27.580223893 + 27.5 = -0.080223893 x = -0.080223893 Simplifying x = -0.080223893

Solution

The solution to the problem is based on the solutions from the subproblems. x = {55.080223893, -0.080223893}

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