-4.9x^2+160x+10=0

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Solution for -4.9x^2+160x+10=0 equation:


Simplifying
-4.9x2 + 160x + 10 = 0

Reorder the terms:
10 + 160x + -4.9x2 = 0

Solving
10 + 160x + -4.9x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-4.9 the coefficient of the squared term: 

Divide each side by '-4.9'.
-2.040816327 + -32.65306122x + x2 = 0

Move the constant term to the right:

Add '2.040816327' to each side of the equation.
-2.040816327 + -32.65306122x + 2.040816327 + x2 = 0 + 2.040816327

Reorder the terms:
-2.040816327 + 2.040816327 + -32.65306122x + x2 = 0 + 2.040816327

Combine like terms: -2.040816327 + 2.040816327 = 0.000000000
0.000000000 + -32.65306122x + x2 = 0 + 2.040816327
-32.65306122x + x2 = 0 + 2.040816327

Combine like terms: 0 + 2.040816327 = 2.040816327
-32.65306122x + x2 = 2.040816327

The x term is -32.65306122x.  Take half its coefficient (-16.32653061).
Square it (266.5556018) and add it to both sides.

Add '266.5556018' to each side of the equation.
-32.65306122x + 266.5556018 + x2 = 2.040816327 + 266.5556018

Reorder the terms:
266.5556018 + -32.65306122x + x2 = 2.040816327 + 266.5556018

Combine like terms: 2.040816327 + 266.5556018 = 268.596418127
266.5556018 + -32.65306122x + x2 = 268.596418127

Factor a perfect square on the left side:
(x + -16.32653061)(x + -16.32653061) = 268.596418127

Calculate the square root of the right side: 16.388911438

Break this problem into two subproblems by setting 
(x + -16.32653061) equal to 16.388911438 and -16.388911438.

Subproblem 1

x + -16.32653061 = 16.388911438 Simplifying x + -16.32653061 = 16.388911438 Reorder the terms: -16.32653061 + x = 16.388911438 Solving -16.32653061 + x = 16.388911438 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '16.32653061' to each side of the equation. -16.32653061 + 16.32653061 + x = 16.388911438 + 16.32653061 Combine like terms: -16.32653061 + 16.32653061 = 0.00000000 0.00000000 + x = 16.388911438 + 16.32653061 x = 16.388911438 + 16.32653061 Combine like terms: 16.388911438 + 16.32653061 = 32.715442048 x = 32.715442048 Simplifying x = 32.715442048

Subproblem 2

x + -16.32653061 = -16.388911438 Simplifying x + -16.32653061 = -16.388911438 Reorder the terms: -16.32653061 + x = -16.388911438 Solving -16.32653061 + x = -16.388911438 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '16.32653061' to each side of the equation. -16.32653061 + 16.32653061 + x = -16.388911438 + 16.32653061 Combine like terms: -16.32653061 + 16.32653061 = 0.00000000 0.00000000 + x = -16.388911438 + 16.32653061 x = -16.388911438 + 16.32653061 Combine like terms: -16.388911438 + 16.32653061 = -0.062380828 x = -0.062380828 Simplifying x = -0.062380828

Solution

The solution to the problem is based on the solutions from the subproblems. x = {32.715442048, -0.062380828}

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