4.9x^2+5x=11.025

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Solution for 4.9x^2+5x=11.025 equation:


Simplifying
4.9x2 + 5x = 11.025

Reorder the terms:
5x + 4.9x2 = 11.025

Solving
5x + 4.9x2 = 11.025

Solving for variable 'x'.

Reorder the terms:
-11.025 + 5x + 4.9x2 = 11.025 + -11.025

Combine like terms: 11.025 + -11.025 = 0.000
-11.025 + 5x + 4.9x2 = 0.000

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

Divide each side by '4.9'.
-2.25 + 1.020408163x + x2 = 0.00

Move the constant term to the right:

Add '2.25' to each side of the equation.
-2.25 + 1.020408163x + 2.25 + x2 = 0.00 + 2.25

Reorder the terms:
-2.25 + 2.25 + 1.020408163x + x2 = 0.00 + 2.25

Combine like terms: -2.25 + 2.25 = 0.00
0.00 + 1.020408163x + x2 = 0.00 + 2.25
1.020408163x + x2 = 0.00 + 2.25

Combine like terms: 0.00 + 2.25 = 2.25
1.020408163x + x2 = 2.25

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 = 2.25 + 0.2603082048

Reorder the terms:
0.2603082048 + 1.020408163x + x2 = 2.25 + 0.2603082048

Combine like terms: 2.25 + 0.2603082048 = 2.5103082048
0.2603082048 + 1.020408163x + x2 = 2.5103082048

Factor a perfect square on the left side:
(x + 0.5102040815)(x + 0.5102040815) = 2.5103082048

Calculate the square root of the right side: 1.584395217

Break this problem into two subproblems by setting 
(x + 0.5102040815) equal to 1.584395217 and -1.584395217.

Subproblem 1

x + 0.5102040815 = 1.584395217 Simplifying x + 0.5102040815 = 1.584395217 Reorder the terms: 0.5102040815 + x = 1.584395217 Solving 0.5102040815 + x = 1.584395217 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 = 1.584395217 + -0.5102040815 Combine like terms: 0.5102040815 + -0.5102040815 = 0.0000000000 0.0000000000 + x = 1.584395217 + -0.5102040815 x = 1.584395217 + -0.5102040815 Combine like terms: 1.584395217 + -0.5102040815 = 1.0741911355 x = 1.0741911355 Simplifying x = 1.0741911355

Subproblem 2

x + 0.5102040815 = -1.584395217 Simplifying x + 0.5102040815 = -1.584395217 Reorder the terms: 0.5102040815 + x = -1.584395217 Solving 0.5102040815 + x = -1.584395217 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 = -1.584395217 + -0.5102040815 Combine like terms: 0.5102040815 + -0.5102040815 = 0.0000000000 0.0000000000 + x = -1.584395217 + -0.5102040815 x = -1.584395217 + -0.5102040815 Combine like terms: -1.584395217 + -0.5102040815 = -2.0945992985 x = -2.0945992985 Simplifying x = -2.0945992985

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.0741911355, -2.0945992985}

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