32+5x-4.9x^2=0

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Solution for 32+5x-4.9x^2=0 equation:


Simplifying
32 + 5x + -4.9x2 = 0

Solving
32 + 5x + -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'.
-6.530612245 + -1.020408163x + x2 = 0

Move the constant term to the right:

Add '6.530612245' to each side of the equation.
-6.530612245 + -1.020408163x + 6.530612245 + x2 = 0 + 6.530612245

Reorder the terms:
-6.530612245 + 6.530612245 + -1.020408163x + x2 = 0 + 6.530612245

Combine like terms: -6.530612245 + 6.530612245 = 0.000000000
0.000000000 + -1.020408163x + x2 = 0 + 6.530612245
-1.020408163x + x2 = 0 + 6.530612245

Combine like terms: 0 + 6.530612245 = 6.530612245
-1.020408163x + x2 = 6.530612245

The x term is -1.020408163x.  Take half its coefficient (-0.5102040815).
Square it (0.2603082048) and add it to both sides.

Add '0.2603082048' to each side of the equation.
-1.020408163x + 0.2603082048 + x2 = 6.530612245 + 0.2603082048

Reorder the terms:
0.2603082048 + -1.020408163x + x2 = 6.530612245 + 0.2603082048

Combine like terms: 6.530612245 + 0.2603082048 = 6.7909204498
0.2603082048 + -1.020408163x + x2 = 6.7909204498

Factor a perfect square on the left side:
(x + -0.5102040815)(x + -0.5102040815) = 6.7909204498

Calculate the square root of the right side: 2.605939456

Break this problem into two subproblems by setting 
(x + -0.5102040815) equal to 2.605939456 and -2.605939456.

Subproblem 1

x + -0.5102040815 = 2.605939456 Simplifying x + -0.5102040815 = 2.605939456 Reorder the terms: -0.5102040815 + x = 2.605939456 Solving -0.5102040815 + x = 2.605939456 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5102040815' to each side of the equation. -0.5102040815 + 0.5102040815 + x = 2.605939456 + 0.5102040815 Combine like terms: -0.5102040815 + 0.5102040815 = 0.0000000000 0.0000000000 + x = 2.605939456 + 0.5102040815 x = 2.605939456 + 0.5102040815 Combine like terms: 2.605939456 + 0.5102040815 = 3.1161435375 x = 3.1161435375 Simplifying x = 3.1161435375

Subproblem 2

x + -0.5102040815 = -2.605939456 Simplifying x + -0.5102040815 = -2.605939456 Reorder the terms: -0.5102040815 + x = -2.605939456 Solving -0.5102040815 + x = -2.605939456 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5102040815' to each side of the equation. -0.5102040815 + 0.5102040815 + x = -2.605939456 + 0.5102040815 Combine like terms: -0.5102040815 + 0.5102040815 = 0.0000000000 0.0000000000 + x = -2.605939456 + 0.5102040815 x = -2.605939456 + 0.5102040815 Combine like terms: -2.605939456 + 0.5102040815 = -2.0957353745 x = -2.0957353745 Simplifying x = -2.0957353745

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.1161435375, -2.0957353745}

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